SE344151B - - Google Patents
Info
- Publication number
- SE344151B SE344151B SE1207366A SE1207366A SE344151B SE 344151 B SE344151 B SE 344151B SE 1207366 A SE1207366 A SE 1207366A SE 1207366 A SE1207366 A SE 1207366A SE 344151 B SE344151 B SE 344151B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1965ST024376 DE1264519B (de) | 1965-09-10 | 1965-09-10 | Datenuebermittlung in einer Fernsprechvermittlungsanlage, an die fuer tonfrequente Tastwahl eingerichtete Teilnehmerapparate und Teilnehmerapparate mit Nummernschalter angeschlossen sind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE344151B true SE344151B (es) | 1972-03-27 |
Family
ID=7460089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1207366A SE344151B (es) | 1965-09-10 | 1966-09-08 |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT281133B (es) |
| CH (1) | CH453438A (es) |
| DE (1) | DE1264519B (es) |
| ES (1) | ES330869A1 (es) |
| NL (1) | NL6612563A (es) |
| SE (1) | SE344151B (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987000378A1 (en) * | 1985-06-27 | 1987-01-15 | Anders Edvard Trell | Entrance telephone system utilizing the public subscriber telephone network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1074669B (de) * | 1957-01-08 | 1960-02-04 | International Standard Electric Corporation, New York, N. Y. (V.St.A.) | Transistoroszillatoranordnung zur Erzeugung einer teilnehmereigenen Frequenz zur Identifizierung des rufenden Teilnehmers in Fernsprechanlagen |
-
1965
- 1965-09-10 DE DE1965ST024376 patent/DE1264519B/de active Pending
-
1966
- 1966-07-04 AT AT634566A patent/AT281133B/de not_active IP Right Cessation
- 1966-09-02 ES ES0330869A patent/ES330869A1/es not_active Expired
- 1966-09-06 NL NL6612563A patent/NL6612563A/xx unknown
- 1966-09-08 SE SE1207366A patent/SE344151B/xx unknown
- 1966-09-09 CH CH1311166A patent/CH453438A/de unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987000378A1 (en) * | 1985-06-27 | 1987-01-15 | Anders Edvard Trell | Entrance telephone system utilizing the public subscriber telephone network |
Also Published As
| Publication number | Publication date |
|---|---|
| ES330869A1 (es) | 1967-06-16 |
| DE1264519B (de) | 1968-03-28 |
| AT281133B (de) | 1970-05-11 |
| NL6612563A (es) | 1967-03-13 |
| CH453438A (de) | 1968-06-14 |