Document Type and Number:
Japanese Patent JPS6216948
Kind Code:
U
Application Number:
JP10719485U
Publication Date:
January 31, 1987
Filing Date:
July 12, 1985
Export Citation:
International Classes:
G03B27/50; G03G15/00; G03G15/04; G03G15/09; (IPC1-7): G03B27/50; G03G15/00; G03G15/04; G03G15/09