DE131139C - - Google Patents
Info
- Publication number
- DE131139C DE131139C DENDAT131139D DE131139DA DE131139C DE 131139 C DE131139 C DE 131139C DE NDAT131139 D DENDAT131139 D DE NDAT131139D DE 131139D A DE131139D A DE 131139DA DE 131139 C DE131139 C DE 131139C
- Authority
- DE
- Germany
- Prior art keywords
- contact
- office
- line
- subscriber
- brush
- 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
- 230000001960 triggered effect Effects 0.000 claims description 5
- 238000011835 investigation Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/56—Arrangements for indicating or recording the called number at the calling subscriber's set
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Structure Of Telephone Exchanges (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE131139C true DE131139C (https=) |
Family
ID=399486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT131139D Active DE131139C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE131139C (https=) |
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0
- DE DENDAT131139D patent/DE131139C/de active Active
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