DE145226C - - Google Patents
Info
- Publication number
- DE145226C DE145226C DENDAT145226D DE145226DA DE145226C DE 145226 C DE145226 C DE 145226C DE NDAT145226 D DENDAT145226 D DE NDAT145226D DE 145226D A DE145226D A DE 145226DA DE 145226 C DE145226 C DE 145226C
- Authority
- DE
- Germany
- Prior art keywords
- relay
- lamp
- contact
- call
- plug
- 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
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000004804 winding Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000011664 signaling Effects 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)
- Interface Circuits In Exchanges (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE145226C true DE145226C (https=) |
Family
ID=412591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT145226D Active DE145226C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE145226C (https=) |
-
0
- DE DENDAT145226D patent/DE145226C/de active Active
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