The method of distribution of correspondence and relative things, in the interior of a country and abroad, by using Post Numbers (P.N.) facilitates the post services of each country as they fill in themselves the address of the receiver-subscriber and so, they proceed to the prompt delivery of 5 the correspondence and the relative things, even in case the receivers have changed their address.

Up to now, in case the receiver of letters and parcels (natural or legal person) changes his address in the same country, he notifies the post

10 services of this change. Afterwards, these services deliver the letters and the parcels to the new address of the receiver by filling in themselves the new address on them, as the previous one is only recorded. This service is offered in Germany for a period up to 6 months, in Austria for a period of 3 months as well as in Italy for a period of 1 month

15 starting from the date of information of the post services.

After the expiration of this period, only some of the letters and parcels return to the senders. Most of them are lost and cause incalculable economic damage to the receivers as well as a blow to their social 20 contacts.

The Post Number is a number that corresponds to the electronic data base of the post service of a country, with a file that contains the elements (full name or trade name etc) and the address of the receiver- 25 subscriber.

The Post Number is completed with codes (letters or numbers) that indicate the country and furthermore some region of the country they are destined for and in which the P.N. in question is in effect.

30 By applying the method of the Post Numbers that is made, according to the invention, with the support of computers , the letters, parcels and relative things circulate in the interior of a country as long as the sender has recorded on them the full name and the P.N. of the receiver, or just the P.N. that has been assigned to him by the post service of the country

35 of his residence or employment after having paid down his subscription. Abroad, they circulate on the basis of the completed by codes Post Number.

If the receiver gives the P.N. of the company he works for or the P.N. of a 40 member of his family or a third person to the senders to use it, then, it is necessary that the sender records on the letter the full name of the final receiver, in the sense of " ATTENTION OF: ..." , so as to facilitate the selection and distribution in the company or in the family.

The receiver in question is certainly the final receiver but the post services consider as receiver the subscriber, whose address is recorded on the letters and the relative things, whereas, altogether, the handling of the letters, by the Post Services, is made on behalf of him. The receiver-subscriber, possessor of the P.N. , is responsible for the internal distribution of the letters and the relative things, but, concering this, the final receiver will have to consent from the moment that he uses the P.N. of the receiver-subscriber.

According to the present invention, one of the advantages of this method is that when the receiver-subscriber changes his address, he can notify directly the post service of this change and the post service will proceed to inform the electronic data base of the new data. In this way, although the receiver-subscriber hasn't yet notified the senders of this change and from now on he has no reason for doing this in this instance the letters will follow him to his new address as it is recorded on them not by the sender but by the post service that is kept informed of each change.

One way (model) of realization of the method of the P.N. is described below, with a reference to the attached figures:

Figure 1 shows a ground plan of a letter's envelope completed according to the invention.

Figure 2 shows an arrangement of electronic equipment that contribute, together with the employee's participation, to the realization of the invention.

Figure 1 shows a model of a letter's envelope equipped with fields, (1 1 ) for writing, typing or printing the name of the final receiver (to the attention of...), (12) for writing etc the Post Number of the receiver- subscriber, (14 ) for writing etc the elements of the sender, (19) for sealing or sticking on stamps, (15) for sticking on the label (16 )on a field of which (17) the full particulars of the receiver-subscriber are printed and on the field (18) of the label the necessary elements for the mechanical sorting and classification of the letters by the post office are recorded by using codes.

The colour of the label or the colour of the letters or the drawings on it will possibly indicate whether the letter is registered, express mail or of any other special handling, while for spotting easily the P.N. of the receiver-subscriber by the reading equipment (in case the P.N. is computerized or printed) or by the postal employee who handles the

letter, there is α frame (13) around it with a continual or discontinuous line of a proportionate width and colour.

The Post Service in a country keeps a data base with Post Numbers. Those interested (natural or legal persons) by addressing themselves to the Post Office, can become its subscribers and have the right to use one or more Post Numbers, depending on the case, for a definite time. The contract between the subscriber and the Post, regarding the use of the same Post Number, can be renewed for life.

The Post Service completes each file of the data base that corresponds to a P.N. of a receiver- subscriber with his full name and his address. The subscriber may renew directly, by informing the Post, the content of this file when he changes his place of residence or employment.

By the method of the P.N., the sender completes, on the envelope of the letter or of a relative thing that he addresses to the final receiver, in field (1 1 ) the full name or trade name of the final receiver and in field (12) within the frame (13) the Post Number of the receiver-subscriber, whereas in field (14) the elements of the sender are written, typed or printed. The postal employee who receives, in any post office, the letter or the relative things, handles them with the support of various types of electronic equipment. So, depending on the way it is written, he reads and computerizes in a terminal PC (21 ) or sweeps with a visual sensor connected with the PC (21 ), the P.N. of the receiver-subscriber, according to figure 2 where a mechanism with which the invention works is shown. The terminal PC that is connected with the data base (22), where the file with the Post Numbers of all the subscribers is found, transfers to it the coded signals.

After the pin-pointing of the file that corresponds to the computerized P.N., its content is transferred by coded signals to the screen (21 ) of the user and to the printer (23) from which we take a self-adhesive label (16) having the full particulars of the receiver-subscriber printed in field (17). (Full name or trade name, country, city, street, number, postal section and P.N. so as to cross-check it with the P.N. written by the sender).

The Post Service, in view of the mechanical way of sorting and classification of the letters and the relative things, as there are too many ways, can combine the sorting procedure with the one of imprinting of the P.N. So, in field (18) of the label (16), all the necessary information for the mechanical sorting and classification can be printed with a code.

Therefore, each time you call the file that corresponds to a P.N., you finally have printed on a label the recent information that concerns the address of the receiver-subscriber, which is placed on the letter or the relative things.

Conceming letters of abroad, for which two post offices intercede, one in the country of dispatch and the other in the country of delivery, the handling of the letters and the relative things in the country of dispatch is made on the basis of the part of the P.N. that indicates the country, and perhaps the region of the destination. In the country of delivery, all the above- mentioned procedure of sorting and distribution of the letters on the basis of the P.N. is executed by the Post Service.

Yet, in case the letter or some relative thing is placed on an electronic scale, the indication of the scale can be combined with the data of the P.N., so as to have, after an electronic elaboration of the data, the amount that the sender will have to pay shown on the screen.

When the change of the receiver' s-subscriber's place of residence or employment concerns a country, in which the Post Numbers' method is applied, then, the postal employee who handles the letters by computerizing the P.N. of the receiver-subscriber he gets a new number of another country and he rehandles it. In case in the country of the new residence the distribution of the letters is not made with the method of the P.N., then, the new address of the receiver-subscriber is printed on the label.

The method of the Post Numbers can be in joint use with the already existing method of distribution of letters.