JPS5440405B2 - - Google Patents
Info
- Publication number
- JPS5440405B2 JPS5440405B2 JP15672775A JP15672775A JPS5440405B2 JP S5440405 B2 JPS5440405 B2 JP S5440405B2 JP 15672775 A JP15672775 A JP 15672775A JP 15672775 A JP15672775 A JP 15672775A JP S5440405 B2 JPS5440405 B2 JP S5440405B2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15672775A JPS5279708A (en) | 1975-12-26 | 1975-12-26 | Key telephone system |
US05/967,017 US4254306A (en) | 1975-12-26 | 1978-12-06 | Key telephone system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15672775A JPS5279708A (en) | 1975-12-26 | 1975-12-26 | Key telephone system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5279708A JPS5279708A (en) | 1977-07-05 |
JPS5440405B2 true JPS5440405B2 (ja) | 1979-12-03 |
Family
ID=15634001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15672775A Granted JPS5279708A (en) | 1975-12-26 | 1975-12-26 | Key telephone system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5279708A (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52104008A (en) * | 1976-02-27 | 1977-09-01 | Taiko Denki Seisakusho:Kk | Connecting method of button telephone apparatus |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5245127Y2 (ja) * | 1973-09-07 | 1977-10-14 |
-
1975
- 1975-12-26 JP JP15672775A patent/JPS5279708A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5279708A (en) | 1977-07-05 |