Document Type and Number:
Japanese Patent JPS5080441
Kind Code:
U
Application Number:
JP13465573U
Publication Date:
July 11, 1975
Filing Date:
November 24, 1973
Export Citation:
International Classes:
G03B31/00; (IPC1-7): G03B31/00
Domestic Patent References:
| JPS509426A | 1975-01-30 |