DE186053C - - Google Patents
Info
- Publication number
- DE186053C DE186053C DENDAT186053D DE186053DA DE186053C DE 186053 C DE186053 C DE 186053C DE NDAT186053 D DENDAT186053 D DE NDAT186053D DE 186053D A DE186053D A DE 186053DA DE 186053 C DE186053 C DE 186053C
- Authority
- DE
- Germany
- Prior art keywords
- office
- extension
- speech
- exchange
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M5/00—Manual exchanges
- H04M5/04—Arrangements for indicating calls or supervising connections for calling or clearing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE186054T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE186053C true DE186053C (fr) |
Family
ID=5719722
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT186053D Active DE186053C (fr) | |||
| DENDAT186054D Active DE186054C (fr) |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT186054D Active DE186054C (fr) |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE186054C (fr) |
-
0
- DE DENDAT186053D patent/DE186053C/de active Active
- DE DENDAT186054D patent/DE186054C/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE186054C (fr) |
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