Document Type and Number:
Japanese Patent JPS5193242
Kind Code:
U
Application Number:
JP85676U
Publication Date:
July 26, 1976
Filing Date:
January 08, 1976
Export Citation:
International Classes:
G03B19/18; G03B17/38; G03B17/46; (IPC1-7): G03B17/38; G03B17/46