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BE411733A - - Google Patents
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BE411733A - - Google Patents

Info

Publication number
BE411733A
BE411733A BE411733DA BE411733A BE 411733 A BE411733 A BE 411733A BE 411733D A BE411733D A BE 411733DA BE 411733 A BE411733 A BE 411733A
Authority
BE
Belgium
Prior art keywords
signal
relay
contact
delay
indicator
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE411733A publication Critical patent/BE411733A/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to two or more of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to two or more of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)
BE411733D BE411733A (sr)

Publications (1)

Publication Number Publication Date
BE411733A true BE411733A (sr)

Family

ID=75628

Family Applications (1)

Application Number Title Priority Date Filing Date
BE411733D BE411733A (sr)

Country Status (1)

Country Link
BE (1) BE411733A (sr)

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