BE478383A - - Google Patents

Info

Publication number
BE478383A
BE478383A BE478383DA BE478383A BE 478383 A BE478383 A BE 478383A BE 478383D A BE478383D A BE 478383DA BE 478383 A BE478383 A BE 478383A
Authority
BE
Belgium
Prior art keywords
control means
local circuit
signaling device
circuit
message
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE478383A publication Critical patent/BE478383A/fr

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
BE478383D BE478383A (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
BE478383A true BE478383A (enrdf_load_html_response)

Family

ID=126165

Family Applications (1)

Application Number Title Priority Date Filing Date
BE478383D BE478383A (enrdf_load_html_response)

Country Status (1)

Country Link
BE (1) BE478383A (enrdf_load_html_response)

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