Document Type and Number:
Japanese Patent JPS5263036
Kind Code:
U
Application Number:
JP15085775U
Publication Date:
May 10, 1977
Filing Date:
November 06, 1975
Export Citation:
International Classes:
G03B7/01; G03B7/04; G03B7/081; G03B17/20; (IPC1-7): G03B17/20; G03B7/00
Domestic Patent References:
| JPS5086539U | 1975-07-23 |