DE146495C - - Google Patents
Info
- Publication number
- DE146495C DE146495C DENDAT146495D DE146495DA DE146495C DE 146495 C DE146495 C DE 146495C DE NDAT146495 D DENDAT146495 D DE NDAT146495D DE 146495D A DE146495D A DE 146495DA DE 146495 C DE146495 C DE 146495C
- Authority
- DE
- Germany
- Prior art keywords
- call
- current
- group
- relay
- type
- 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
- 238000004804 winding Methods 0.000 description 8
- 230000005284 excitation Effects 0.000 description 5
- 210000000056 organ Anatomy 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M5/00—Manual exchanges
- H04M5/12—Calling substations, e.g. by ringing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE146495C true DE146495C (https=) |
Family
ID=413767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT146495D Active DE146495C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE146495C (https=) |
-
0
- DE DENDAT146495D patent/DE146495C/de active Active
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