JPS5522987B2 - - Google Patents
Info
- Publication number
- JPS5522987B2 JPS5522987B2 JP2093376A JP2093376A JPS5522987B2 JP S5522987 B2 JPS5522987 B2 JP S5522987B2 JP 2093376 A JP2093376 A JP 2093376A JP 2093376 A JP2093376 A JP 2093376A JP S5522987 B2 JPS5522987 B2 JP S5522987B2
- 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
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/71—Substation extension arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2093376A JPS52104008A (en) | 1976-02-27 | 1976-02-27 | Connecting method of button telephone apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2093376A JPS52104008A (en) | 1976-02-27 | 1976-02-27 | Connecting method of button telephone apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52104008A JPS52104008A (en) | 1977-09-01 |
| JPS5522987B2 true JPS5522987B2 (enrdf_load_stackoverflow) | 1980-06-20 |
Family
ID=12041003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2093376A Granted JPS52104008A (en) | 1976-02-27 | 1976-02-27 | Connecting method of button telephone apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS52104008A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5330802A (en) * | 1976-09-03 | 1978-03-23 | Meisei Electric Co Ltd | Key telephone system |
| JP2822205B2 (ja) * | 1989-04-25 | 1998-11-11 | 松下電器産業株式会社 | 内線通話機能付き電話装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS494962A (enrdf_load_stackoverflow) * | 1972-04-27 | 1974-01-17 | ||
| JPS5279705A (en) * | 1975-12-26 | 1977-07-05 | Iwatsu Electric Co Ltd | Privacy circuit in key telephone unit |
| JPS5279707A (en) * | 1975-12-26 | 1977-07-05 | Iwatsu Electric Co Ltd | Key telephone main unit |
| JPS5279706A (en) * | 1975-12-26 | 1977-07-05 | Iwatsu Electric Co Ltd | Subscriber line calling system in key telephone unit |
| JPS5279704A (en) * | 1975-12-26 | 1977-07-05 | Iwatsu Electric Co Ltd | Holding system in key telephone system |
| JPS5279708A (en) * | 1975-12-26 | 1977-07-05 | Iwatsu Electric Co Ltd | Key telephone system |
-
1976
- 1976-02-27 JP JP2093376A patent/JPS52104008A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52104008A (en) | 1977-09-01 |