DE141390C - - Google Patents

Info

Publication number
DE141390C
DE141390C DENDAT141390D DE141390DA DE141390C DE 141390 C DE141390 C DE 141390C DE NDAT141390 D DENDAT141390 D DE NDAT141390D DE 141390D A DE141390D A DE 141390DA DE 141390 C DE141390 C DE 141390C
Authority
DE
Germany
Prior art keywords
detector
detectors
same time
line
current
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
Application number
DENDAT141390D
Other languages
German (de)
English (en)
Publication of DE141390C publication Critical patent/DE141390C/de
Active legal-status Critical Current

Links

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)
  • Control Of Position Or Direction (AREA)
DENDAT141390D Active DE141390C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE141390C true DE141390C (enrdf_load_stackoverflow)

Family

ID=409011

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT141390D Active DE141390C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE141390C (enrdf_load_stackoverflow)

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