Document Type and Number:
Japanese Patent JPS5050348
Kind Code:
U
Application Number:
JP10410173U
Publication Date:
May 16, 1975
Filing Date:
September 05, 1973
Export Citation:
International Classes:
G03B31/00; G03B31/02; (IPC1-7): G03B31/02
Domestic Patent References:
| JPS4723936A |