Title:
【考案の名称】電話回線切替回路
Document Type and Number:
Japanese Patent JPS59161761
Kind Code:
U
Inventors:
Moriki Narumi
Application Number:
JP5408483U
Publication Date:
October 30, 1984
Filing Date:
April 13, 1983
Export Citation:
International Classes:
H04M9/00; H04Q9/00; (IPC1-7): H04M9/00