Title:
【考案の名称】スピーカホーン電話機
Document Type and Number:
Japanese Patent JPH04131063
Kind Code:
U
Inventors:
Koji Ono
Application Number:
JP3729691U
Publication Date:
December 01, 1992
Filing Date:
May 24, 1991
Export Citation:
International Classes:
H04M1/60; (IPC1-7): H04M1/60