DE176421C - - Google Patents
Info
- Publication number
- DE176421C DE176421C DENDAT176421D DE176421DA DE176421C DE 176421 C DE176421 C DE 176421C DE NDAT176421 D DENDAT176421 D DE NDAT176421D DE 176421D A DE176421D A DE 176421DA DE 176421 C DE176421 C DE 176421C
- Authority
- DE
- Germany
- Prior art keywords
- line
- contact
- electromagnet
- switch
- station
- 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 32
- 230000008859 change Effects 0.000 claims description 16
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 230000006698 induction Effects 0.000 description 7
- 230000000994 depressogenic effect Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000881 depressing effect Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 241000947840 Alteromonadales Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
- H04M3/62—Keyboard equipment
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE176421C true DE176421C (enrdf_load_stackoverflow) |
Family
ID=440991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT176421D Active DE176421C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE176421C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT176421D patent/DE176421C/de active Active
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