Document Type and Number:
Japanese Patent JPS50100927
Kind Code:
U
Application Number:
JP995374U
Publication Date:
August 21, 1975
Filing Date:
January 22, 1974
Export Citation:
International Classes:
G03B7/083; G03B17/18; (IPC1-7): G03B7/08; G03B17/18
Domestic Patent References:
| JPS4510777Y1 | 1970-05-15 | |||
| JPS4726903A |