SE361575B - - Google Patents
Info
- Publication number
- SE361575B SE361575B SE04274/72A SE427472A SE361575B SE 361575 B SE361575 B SE 361575B SE 04274/72 A SE04274/72 A SE 04274/72A SE 427472 A SE427472 A SE 427472A SE 361575 B SE361575 B SE 361575B
- 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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE04274/72A SE361575B (en:Method) | 1972-04-04 | 1972-04-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE04274/72A SE361575B (en:Method) | 1972-04-04 | 1972-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE361575B true SE361575B (en:Method) | 1973-11-05 |
Family
ID=20263838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE04274/72A SE361575B (en:Method) | 1972-04-04 | 1972-04-04 |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE361575B (en:Method) |
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1972
- 1972-04-04 SE SE04274/72A patent/SE361575B/xx unknown