DE291291C - - Google Patents
Info
- Publication number
- DE291291C DE291291C DENDAT291291D DE291291DA DE291291C DE 291291 C DE291291 C DE 291291C DE NDAT291291 D DENDAT291291 D DE NDAT291291D DE 291291D A DE291291D A DE 291291DA DE 291291 C DE291291 C DE 291291C
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- control magnet
- work
- transmission
- relays
- 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
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000004020 conductor Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Interface Circuits In Exchanges (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE291291C true DE291291C (cs) |
Family
ID=546183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT291291D Active DE291291C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE291291C (cs) |
-
0
- DE DENDAT291291D patent/DE291291C/de active Active
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