Document Type and Number:
Japanese Patent JPS5072236
Kind Code:
U
Application Number:
JP12556273U
Publication Date:
June 25, 1975
Filing Date:
October 30, 1973
Export Citation:
International Classes:
G03B19/18; G03B1/54; G03B9/08; G03B17/40; (IPC1-7): G03B19/18; G03B9/08; G03B17/40