Document Type and Number:
Japanese Patent JPS5199531
Kind Code:
U
Application Number:
JP1364475U
Publication Date:
August 10, 1976
Filing Date:
January 29, 1975
Export Citation:
International Classes:
G03B13/02; G03B9/08; G03B13/00; G03B15/05; G03B17/02; (IPC1-7): G03B9/08; G03B13/00; G03B15/05
Domestic Patent References:
| JPS39856Y1 | ||||
| JPS4021252Y1 | ||||
| JPS42358Y1 | 1967-01-11 | |||
| JPS47237B1 |