Document Type and Number:
Japanese Patent JPS57104658
Kind Code:
U
Application Number:
JP18138480U
Publication Date:
June 28, 1982
Filing Date:
December 16, 1980
Export Citation:
International Classes:
H04M11/10; H04M1/64; H04M1/65; H04Q9/00; H04Q9/14; (IPC1-7): H04M11/10; H04M1/64; H04Q9/00
Domestic Patent References:
JP43012694A | ||||
JPS5055787A | 1975-05-16 | |||
JPS4843441A | 1973-06-23 | |||
JPS4922050A | 1974-02-27 | |||
JPS54121010A | 1979-09-19 |