DE134270C - - Google Patents
Info
- Publication number
- DE134270C DE134270C DENDAT134270D DE134270DA DE134270C DE 134270 C DE134270 C DE 134270C DE NDAT134270 D DENDAT134270 D DE NDAT134270D DE 134270D A DE134270D A DE 134270DA DE 134270 C DE134270 C DE 134270C
- Authority
- DE
- Germany
- Prior art keywords
- line
- office
- call
- switch
- battery
- 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
- H04M9/00—Arrangements for interconnection not involving centralised switching
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE134270C true DE134270C (en:Method) |
Family
ID=402410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT134270D Active DE134270C (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE134270C (en:Method) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE861416C (de) * | 1949-10-29 | 1953-01-05 | Normalzeit G M B H | Schaltungsanordnung fuer Zwischenstellenumschalter von Fernsprechnebenstellenanlagen |
-
0
- DE DENDAT134270D patent/DE134270C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE861416C (de) * | 1949-10-29 | 1953-01-05 | Normalzeit G M B H | Schaltungsanordnung fuer Zwischenstellenumschalter von Fernsprechnebenstellenanlagen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE134270C (en:Method) | ||
| DE245733C (en:Method) | ||
| DE159826C (en:Method) | ||
| DE151623C (en:Method) | ||
| DE102588C (en:Method) | ||
| DE117996C (en:Method) | ||
| DE484909C (de) | Schaltungsanordnung fuer Fernsprechanlagen | |
| DE138298C (en:Method) | ||
| DE159808C (en:Method) | ||
| DE168793C (en:Method) | ||
| DE304750C (en:Method) | ||
| DE153394C (en:Method) | ||
| DE147905C (en:Method) | ||
| DE139401C (en:Method) | ||
| DE118661C (en:Method) | ||
| DE236758C (en:Method) | ||
| DE308095C (en:Method) | ||
| DE167704C (en:Method) | ||
| DE536090C (de) | Fernsprechanlage fuer Gesellschaftsanschluesse mit Wahrung des Gespraechsgeheimnisses | |
| DE110626C (en:Method) | ||
| DE110901C (en:Method) | ||
| DE143668C (en:Method) | ||
| DE186054C (en:Method) | ||
| DE272989C (en:Method) | ||
| DE312265C (en:Method) |