Document Type and Number:
Japanese Patent JPS5154635
Kind Code:
U
Application Number:
JP12805874U
Publication Date:
April 26, 1976
Filing Date:
October 23, 1974
Export Citation:
International Classes:
G03B9/02; G02B15/02; G03B17/12; (IPC1-7): G03B9/02; G02B15/02