Document Type and Number:
Japanese Patent JPS50138855
Kind Code:
U
Application Number:
JP4981974U
Publication Date:
November 15, 1975
Filing Date:
April 30, 1974
Export Citation:
International Classes:
A47L1/02; B08B1/00; G09F7/00; G09F19/22; (IPC1-7): B08B1/00; G09F7/00
Domestic Patent References:
| JPS477968B1 |