DE133973C - - Google Patents
Info
- Publication number
- DE133973C DE133973C DE1901133973D DE133973DA DE133973C DE 133973 C DE133973 C DE 133973C DE 1901133973 D DE1901133973 D DE 1901133973D DE 133973D A DE133973D A DE 133973DA DE 133973 C DE133973 C DE 133973C
- Authority
- DE
- Germany
- Prior art keywords
- line
- spring
- earth
- subscriber
- office
- 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.)
- Expired - Lifetime
Links
- 230000011664 signaling Effects 0.000 claims 1
- 230000010287 polarization Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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)
- Devices For Supply Of Signal Current (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT13747D AT13747B (cs) | 1901-03-02 | 1902-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE133973C true DE133973C (cs) |
Family
ID=402130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1901133973D Expired - Lifetime DE133973C (cs) | 1901-03-02 | 1901-03-02 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE133973C (cs) |
-
1901
- 1901-03-02 DE DE1901133973D patent/DE133973C/de not_active Expired - Lifetime
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