DE263072C - - Google Patents
Info
- Publication number
- DE263072C DE263072C DENDAT263072D DE263072DA DE263072C DE 263072 C DE263072 C DE 263072C DE NDAT263072 D DENDAT263072 D DE NDAT263072D DE 263072D A DE263072D A DE 263072DA DE 263072 C DE263072 C DE 263072C
- Authority
- DE
- Germany
- Prior art keywords
- extension
- electromagnet
- current
- office
- battery
- 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 claims description 4
- 230000002028 premature Effects 0.000 description 4
- 230000011664 signaling Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M5/00—Manual exchanges
- H04M5/04—Arrangements for indicating calls or supervising connections for calling or clearing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE263072C true DE263072C (cs) |
Family
ID=520495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT263072D Active DE263072C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE263072C (cs) |
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0
- DE DENDAT263072D patent/DE263072C/de active Active