Document Type and Number:
Japanese Patent JPS50120625
Kind Code:
A
Application Number:
JP2637674A
Publication Date:
September 22, 1975
Filing Date:
March 08, 1974
Export Citation:
International Classes:
G03B21/64; G03B21/11; (IPC1-7): G03B21/11
Domestic Patent References:
| JPS3716715Y1 | ||||
| JPS3922247Y1 |