Document Type and Number:
Japanese Patent JPS4861337
Kind Code:
U
Application Number:
JP10637471U
Publication Date:
August 04, 1973
Filing Date:
November 13, 1971
Export Citation:
International Classes:
G03B7/00; H01C10/16; H01C10/20; (IPC1-7): H01C10/20; G03B7/00