SE354954B - - Google Patents
Info
- Publication number
- SE354954B SE354954B SE127071A SE127071A SE354954B SE 354954 B SE354954 B SE 354954B SE 127071 A SE127071 A SE 127071A SE 127071 A SE127071 A SE 127071A SE 354954 B SE354954 B SE 354954B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH156470A CH519835A (de) | 1970-02-03 | 1970-02-03 | Verfahren und Vorrichtung zur Anzeige des Zustandes der Belegung auf einer Teilnehmerleitung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE354954B true SE354954B (xx) | 1973-03-26 |
Family
ID=4213371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE127071A SE354954B (xx) | 1970-02-03 | 1971-02-02 |
Country Status (7)
| Country | Link |
|---|---|
| CH (1) | CH519835A (xx) |
| DE (1) | DE2100458C3 (xx) |
| ES (1) | ES387709A1 (xx) |
| FI (1) | FI56086C (xx) |
| GB (1) | GB1327862A (xx) |
| NO (1) | NO130448C (xx) |
| SE (1) | SE354954B (xx) |
-
1970
- 1970-02-03 CH CH156470A patent/CH519835A/de not_active IP Right Cessation
- 1970-12-17 NO NO485470A patent/NO130448C/no unknown
- 1970-12-31 FI FI352370A patent/FI56086C/fi active
-
1971
- 1971-01-07 DE DE19712100458 patent/DE2100458C3/de not_active Expired
- 1971-01-28 ES ES387709A patent/ES387709A1/es not_active Expired
- 1971-02-02 SE SE127071A patent/SE354954B/xx unknown
- 1971-04-19 GB GB2076271A patent/GB1327862A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH519835A (de) | 1972-02-29 |
| NO130448B (xx) | 1974-09-02 |
| FI56086B (fi) | 1979-07-31 |
| DE2100458A1 (de) | 1971-08-12 |
| FI56086C (fi) | 1979-11-12 |
| ES387709A1 (es) | 1974-02-16 |
| DE2100458B2 (de) | 1979-09-13 |
| DE2100458C3 (de) | 1980-06-04 |
| GB1327862A (en) | 1973-08-22 |
| NO130448C (xx) | 1974-12-18 |