DE117409C - - Google Patents
Info
- Publication number
- DE117409C DE117409C DENDAT117409D DE117409DA DE117409C DE 117409 C DE117409 C DE 117409C DE NDAT117409 D DENDAT117409 D DE NDAT117409D DE 117409D A DE117409D A DE 117409DA DE 117409 C DE117409 C DE 117409C
- Authority
- DE
- Germany
- Prior art keywords
- working
- current
- lines
- surges
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/16—Electric signal transmission systems in which transmission is by pulses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE117409C true DE117409C (en:Method) |
Family
ID=386677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT117409D Active DE117409C (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE117409C (en:Method) |
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0
- DE DENDAT117409D patent/DE117409C/de active Active
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