Document Type and Number:
Japanese Patent JPS5116721
Kind Code:
B1
Application Number:
JP7910368A
Publication Date:
May 27, 1976
Filing Date:
October 30, 1968
Export Citation:
International Classes:
H04M11/06; H04L13/00; H04L13/18; H04M11/00; (IPC1-7): H04M11/06; H04L13/00
Domestic Patent References:
| JP42001893A |