JPS5528585B2 - - Google Patents
Info
- Publication number
- JPS5528585B2 JPS5528585B2 JP9115275A JP9115275A JPS5528585B2 JP S5528585 B2 JPS5528585 B2 JP S5528585B2 JP 9115275 A JP9115275 A JP 9115275A JP 9115275 A JP9115275 A JP 9115275A JP S5528585 B2 JPS5528585 B2 JP S5528585B2
- 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 |
|---|---|---|---|
| JP9115275A JPS5215207A (en) | 1975-07-28 | 1975-07-28 | Main wire called indication system key telephone |
| US05/707,324 US4079212A (en) | 1975-07-23 | 1976-07-21 | Extension telephone system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9115275A JPS5215207A (en) | 1975-07-28 | 1975-07-28 | Main wire called indication system key telephone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5215207A JPS5215207A (en) | 1977-02-04 |
| JPS5528585B2 true JPS5528585B2 (Sortimente) | 1980-07-29 |
Family
ID=14018531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9115275A Granted JPS5215207A (en) | 1975-07-23 | 1975-07-28 | Main wire called indication system key telephone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5215207A (Sortimente) |
-
1975
- 1975-07-28 JP JP9115275A patent/JPS5215207A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5215207A (en) | 1977-02-04 |