Document Type and Number:
Japanese Patent JPS5538247
Kind Code:
U
Application Number:
JP12125978U
Publication Date:
March 12, 1980
Filing Date:
September 04, 1978
Export Citation:
International Classes:
G04G3/02; H03B5/32; H03L1/02; H03L5/00; (IPC1-7): G04G3/02; H03B5/32; H03L5/00