DE139401C - - Google Patents
Info
- Publication number
- DE139401C DE139401C DENDAT139401D DE139401DA DE139401C DE 139401 C DE139401 C DE 139401C DE NDAT139401 D DENDAT139401 D DE NDAT139401D DE 139401D A DE139401D A DE 139401DA DE 139401 C DE139401 C DE 139401C
- Authority
- DE
- Germany
- Prior art keywords
- battery
- subscriber
- call
- relay
- line
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000010287 polarization Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000011664 signaling Effects 0.000 claims 1
- 210000003739 neck Anatomy 0.000 description 9
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE139401C true DE139401C (forum.php) |
Family
ID=407152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT139401D Active DE139401C (forum.php) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE139401C (forum.php) |
-
0
- DE DENDAT139401D patent/DE139401C/de active Active
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