Document Type and Number:
Japanese Patent JPS5217733
Kind Code:
B1
Application Number:
JP10168370A
Publication Date:
May 17, 1977
Filing Date:
November 18, 1970
Export Citation:
International Classes:
G03B27/00; G03B27/42; G03G15/00; H03K23/84; (IPC1-7): G03B27/42; G03G15/00; H03K23/16