Document Type and Number:
Japanese Patent JPS51806
Kind Code:
B1
Application Number:
JP2878169A
Publication Date:
January 10, 1976
Filing Date:
April 11, 1969
Export Citation:
International Classes:
H04Q1/30; H04L27/26; H04Q5/16; (IPC1-7): H04Q7/02; H04Q5/16
Domestic Patent References:
| JP42006000A |