DE206269C - - Google Patents
Info
- Publication number
- DE206269C DE206269C DENDAT206269D DE206269DA DE206269C DE 206269 C DE206269 C DE 206269C DE NDAT206269 D DENDAT206269 D DE NDAT206269D DE 206269D A DE206269D A DE 206269DA DE 206269 C DE206269 C DE 206269C
- Authority
- DE
- Germany
- Prior art keywords
- extensions
- branch
- extension
- electromagnets
- line
- 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
- 230000005284 excitation Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 2
- 230000006698 induction Effects 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/68—Circuit arrangements for preventing eavesdropping
- H04M1/70—Lock-out or secrecy arrangements in party-line systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE206269C true DE206269C (cs) |
Family
ID=468451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT206269D Active DE206269C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE206269C (cs) |
-
0
- DE DENDAT206269D patent/DE206269C/de active Active
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