Document Type and Number:
Japanese Patent JPS50119337
Kind Code:
U
Application Number:
JP2962674U
Publication Date:
September 29, 1975
Filing Date:
March 14, 1974
Export Citation:
International Classes:
G03B23/02; G03B31/00; G03B31/06; (IPC1-7): G03B23/02; G03B31/00
Domestic Patent References:
| JP48099140B | ||||
| JP48099726B |