Document Type and Number:
Japanese Patent JPS51112542
Kind Code:
U
Application Number:
JP3022775U
Publication Date:
September 11, 1976
Filing Date:
March 07, 1975
Export Citation:
International Classes:
G03B21/64; G03B21/00; G03B31/06; (IPC1-7): G03B21/64; G03B21/00
Domestic Patent References:
| JPS5141445B1 | 1976-11-10 |