Document Type and Number:
Japanese Patent JPS51107708
Kind Code:
A
Inventors:
MYATA MASACHIKA
Application Number:
JP3218575A
Publication Date:
September 24, 1976
Filing Date:
March 19, 1975
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H04J3/00; (IPC1-7): H04J3/00