Document Type and Number:
Japanese Patent JPS5094919
Kind Code:
U
Application Number:
JP12265573U
Publication Date:
August 08, 1975
Filing Date:
October 24, 1973
Export Citation:
International Classes:
G03B19/18; G03B21/48; G03B31/00; (IPC1-7): G03B21/48; G03B31/00
Domestic Patent References:
| JPS49131438A | 1974-12-17 |