Document Type and Number:
Japanese Patent JPS5173035
Kind Code:
U
Application Number:
JP14696574U
Publication Date:
June 09, 1976
Filing Date:
December 06, 1974
Export Citation:
International Classes:
G03B7/26; G03B17/00; G03B17/38; (IPC1-7): G03B7/00; G03B17/00
Domestic Patent References:
| JPS4826420U | 1973-03-30 | |||
| JPS4418222Y1 | 1969-08-06 |