Document Type and Number:
Japanese Patent JPS5295426
Kind Code:
U
Application Number:
JP270476U
Publication Date:
July 16, 1977
Filing Date:
January 14, 1976
Export Citation:
International Classes:
G03B23/08; G03B21/00; (IPC1-7): G03B21/00
Domestic Patent References:
| JPS256782Y1 |