Title:
【考案の名称】電話回線試験用送・受話器
Document Type and Number:
Japanese Patent JPS58116361
Kind Code:
U
Inventors:
Toshiki Morimoto
Morita Hidetoshi
Morita Hidetoshi
Application Number:
JP1151682U
Publication Date:
August 09, 1983
Filing Date:
February 01, 1982
Export Citation:
International Classes:
H04Q1/20; H04M1/24; H04M3/24; (IPC1-7): H04M1/24; H04M3/24