DE178220C - - Google Patents

Info

Publication number
DE178220C
DE178220C DENDAT178220D DE178220DA DE178220C DE 178220 C DE178220 C DE 178220C DE NDAT178220 D DENDAT178220 D DE NDAT178220D DE 178220D A DE178220D A DE 178220DA DE 178220 C DE178220 C DE 178220C
Authority
DE
Germany
Prior art keywords
contacts
switch
segment
signals
changeover switch
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
DENDAT178220D
Other languages
German (de)
English (en)
Publication of DE178220C publication Critical patent/DE178220C/de
Active legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Keying Circuit Devices (AREA)
DENDAT178220D Active DE178220C (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
DE178220C true DE178220C (enrdf_load_html_response)

Family

ID=442637

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT178220D Active DE178220C (enrdf_load_html_response)

Country Status (1)

Country Link
DE (1) DE178220C (enrdf_load_html_response)

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