Document Type and Number:
Japanese Patent JPS5648163
Kind Code:
U
Application Number:
JP11617380U
Publication Date:
April 28, 1981
Filing Date:
August 15, 1980
Export Citation:
International Classes:
H04B5/00; B66F1/04; H04B3/60; H04M9/00; (IPC1-7): H04M9/00; B66F1/04; H04B3/60; H04B5/00
Domestic Patent References:
| JPS4890413A | 1973-11-26 | |||
| JPS4887711A | 1973-11-17 | |||
| JP50060901B |