DE142921C - - Google Patents
Info
- Publication number
- DE142921C DE142921C DENDAT142921D DE142921DA DE142921C DE 142921 C DE142921 C DE 142921C DE NDAT142921 D DENDAT142921 D DE NDAT142921D DE 142921D A DE142921D A DE 142921DA DE 142921 C DE142921 C DE 142921C
- Authority
- DE
- Germany
- Prior art keywords
- battery
- microphone
- circuit
- subscriber
- 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
- 239000003990 capacitor Substances 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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)
- Mobile Radio Communication Systems (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE142921C true DE142921C (enExample) |
Family
ID=410450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT142921D Active DE142921C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE142921C (enExample) |
-
0
- DE DENDAT142921D patent/DE142921C/de active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE142921C (enExample) | ||
| DE245733C (enExample) | ||
| AT130537B (de) | Schaltungsanordnung für Fernmeldeanlagen. | |
| DE123972C (enExample) | ||
| DE260065C (enExample) | ||
| DE123710C (enExample) | ||
| DE150287C (enExample) | ||
| DE193325C (enExample) | ||
| DE147424C (enExample) | ||
| DE155530C (enExample) | ||
| DE222228C (enExample) | ||
| DE188751C (enExample) | ||
| DE260282C (enExample) | ||
| DE157933C (enExample) | ||
| DE202373C (enExample) | ||
| DE139401C (enExample) | ||
| DE606436C (de) | Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb | |
| DE171721C (enExample) | ||
| DE223977C (enExample) | ||
| DE197895C (enExample) | ||
| DE245432C (enExample) | ||
| DE146508C (enExample) | ||
| DE249545C (enExample) | ||
| DE176833C (enExample) | ||
| DE130114C (enExample) |