Document Type and Number:
Japanese Patent JPS5229007
Kind Code:
Y2
Application Number:
JP14355672U
Publication Date:
July 02, 1977
Filing Date:
December 14, 1972
Export Citation:
International Classes:
G03B19/18; G03B1/56; G03B17/22; G03B17/48; G03B23/02; G03B27/32; G03C3/00; H01H33/66; (IPC1-7): G03B17/22; G03B1/56; G03B23/02