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JPS5135308A |
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JPS5135303A |
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JPS5040001B2 |
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JPS50155202A |
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JPS5037615B1 |
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JPS5036761B1 |
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JPS50124956A |
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JPS50123776A |
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JPS50113568A |
In a moulding press with parted press tools for producing hot-pressed products of plastic materials, particularly grammophone records, an arrangement for holding and handling the products, which is movable between the pressing area and a...
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JPS5027079B1 |
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JPS50110602A |
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JPS5078301A |
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JPS5068102A |
A matrix is used to prepare a mold of an elastomeric material. A polymerizable compound is coated onto a flexible, thin substrate such as Mylar and is placed with compound side in intimate contact with the mold. The compound is cured and...
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JPS5015824B1 |
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JPS5057602A |
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JPS5056901A |
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JPS507921B1 |
1,238,529. Moulding gramophone records. CARL LINDSTROM G.m.b.H. 15 July, 1968 [17 July, 1967], No. 33647/68. Addition to 1,184,111. Heading B5A. Apparatus for the automatic production of gramophone records as described in the parent Spec...
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JPS507859A |
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JPS4947615B1 |
1326767 Producing moulds by electro-forming RCA CORPORATION 22 Sept 1970 [29 Sept 1969] 45070/70 Heading C7B A method of making replicas of a relief pattern recording audio or visual information on the surface of a plastics material comp...
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JPS49126301A |
A process for producing gramophone records comprises (1) placing between the faces of the cutting press two blank discs of transparent material with two paper discs of smaller diameter, printed with technical information and the title et...
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JPS4942668B1 |
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JPS49119601A |
A matrix, which is to be employed for pressing foil disc copies carrying a spiral groove which is highly concentric to the axis of disc rotation, is formed by electrodeposition from a lacquer foil original which is cut to form a groove c...
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JPS4941108B1 |
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JPS4939911B1 |
1,187,968. Moulding gramophone records. ELECTRIC & MUSICAL INDUSTRIES Ltd. 5 June, 1967 [24 June, 1966], No. 28258/66. Heading B5A. A gramophone record moulding press with opposed moulding platens, includes centrally located pin and anvi...
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JPS4937524B1 |
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JPS4937525B1 |
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JPS4932122B1 |
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JPS4928006Y1 |
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JPS4928005Y1 |
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JPS4928004Y1 |
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JPS4967944A |
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JPS4923881B1 |
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JPS4922442B1 |
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JPS4922443B1 |
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JPS4953652A |
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JPS4914241B1 |
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JPS4918314A |
1417792 Video disc record for capacitive playback RCA CORPORATION 13 April 1973 [19 April 1972] 17794/73 Heading G4R A video disc record for the capacitive playback arrangement described in Specification 1,392,201 to 1,392,206 comprises ...
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JPS495445B1 |
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JPS491332B1 |
1,270,266. Toothed gearing; clutches. LORENCE MFG. CORP. 11 April, 1969 [12 April, 1968], No. 18690/69. Headings F2C and F2Q. An input shaft 10 carries diametrically opposed eccentrics 20, 21 on which are mounted stepped gears 23, 25 eac...
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JPS492503A |
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JPS4898820A |
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JPS4842163B1 |
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JPS4842164B1 |
1,050,603. Moulding gramophone records. COLUMBIA BROADCASTING SYSTEM Inc. May 25, 1965 [Aug. 24, 1964], No. 22159/65. Heading B5A. In a method of making gramophone records, thermoplastic material is introduced by an extruder between a pa...
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JPS4842165B1 |
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JPS4842166B1 |
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JPS4889704A |
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JPS4885202A |
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JPS4836179B1 |
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JPS4860903A |
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JPS4827682B1 |
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