Document Type and Number:
Japanese Patent JPS52151734
Kind Code:
U
More Like This:
Application Number:
JP6106076U
Publication Date:
November 17, 1977
Filing Date:
May 13, 1976
Export Citation:
International Classes:
G03B31/04; (IPC1-7): G03B31/04
Domestic Patent References:
JPS4947177A | 1974-05-07 |