Document Type and Number:
Japanese Patent JPS48111135
Kind Code:
U
Application Number:
JP3568572U
Publication Date:
December 20, 1973
Filing Date:
March 28, 1972
Export Citation:
International Classes:
G03B17/12; G03B17/56; (IPC1-7): G03B17/12; G03B17/56
Domestic Patent References:
| JP15004503Y1 |