Document Type and Number:
Japanese Patent JPS5323231
Kind Code:
U
Application Number:
JP10414076U
Publication Date:
February 27, 1978
Filing Date:
August 04, 1976
Export Citation:
International Classes:
G03B3/02; G02B7/04; G02B7/08; G02B7/28; G03B3/00; G03B13/32; (IPC1-7): G02B7/04; G03B3/00