DE117996C - - Google Patents
Info
- Publication number
- DE117996C DE117996C DE1899117996D DE117996DA DE117996C DE 117996 C DE117996 C DE 117996C DE 1899117996 D DE1899117996 D DE 1899117996D DE 117996D A DE117996D A DE 117996DA DE 117996 C DE117996 C DE 117996C
- Authority
- DE
- Germany
- Prior art keywords
- line
- circuit
- lamp
- signal
- relay
- 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
- 238000004804 winding Methods 0.000 claims description 15
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000005415 magnetization Effects 0.000 claims 2
- 230000003313 weakening effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M5/00—Manual exchanges
- H04M5/08—Manual exchanges using connecting means other than cords
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT8954D AT8954B (en:Method) | 1899-03-30 | 1900-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE117996C true DE117996C (en:Method) |
Family
ID=387225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1899117996D Expired - Lifetime DE117996C (en:Method) | 1899-03-30 | 1899-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE117996C (en:Method) |
-
1899
- 1899-03-30 DE DE1899117996D patent/DE117996C/de not_active Expired - Lifetime
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