BE435530A - - Google Patents

Info

Publication number
BE435530A
BE435530A BE435530DA BE435530A BE 435530 A BE435530 A BE 435530A BE 435530D A BE435530D A BE 435530DA BE 435530 A BE435530 A BE 435530A
Authority
BE
Belgium
Prior art keywords
relay
diagram according
relays
pulses
earth
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE435530A publication Critical patent/BE435530A/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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)
  • Selective Calling Equipment (AREA)
BE435530D BE435530A (ref)

Publications (1)

Publication Number Publication Date
BE435530A true BE435530A (ref)

Family

ID=94404

Family Applications (1)

Application Number Title Priority Date Filing Date
BE435530D BE435530A (ref)

Country Status (1)

Country Link
BE (1) BE435530A (ref)

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