DE288805C - - Google Patents
Info
- Publication number
- DE288805C DE288805C DENDAT288805D DE288805DA DE288805C DE 288805 C DE288805 C DE 288805C DE NDAT288805 D DENDAT288805 D DE NDAT288805D DE 288805D A DE288805D A DE 288805DA DE 288805 C DE288805 C DE 288805C
- Authority
- DE
- Germany
- Prior art keywords
- relay
- extension
- line
- connection
- contact
- Prior art date
- 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.)
- Active
Links
- 230000000903 blocking effect Effects 0.000 claims description 4
- 210000000056 organ Anatomy 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Relay Circuits (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE288805C true DE288805C (https=) |
Family
ID=543889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT288805D Active DE288805C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE288805C (https=) |
-
0
- DE DENDAT288805D patent/DE288805C/de active Active
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