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FR1142705A - Light signaling method and device - Google Patents

Light signaling method and device

Info

Publication number
FR1142705A
FR1142705A FR1142705DA FR1142705A FR 1142705 A FR1142705 A FR 1142705A FR 1142705D A FR1142705D A FR 1142705DA FR 1142705 A FR1142705 A FR 1142705A
Authority
FR
France
Prior art keywords
signaling method
light signaling
light
signaling
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.)
Expired
Application number
Other languages
French (fr)
Inventor
William-Edmond Celestin
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR1142705A publication Critical patent/FR1142705A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/24—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR1142705D 1956-02-16 1956-02-16 Light signaling method and device Expired FR1142705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1142705T 1956-02-16

Publications (1)

Publication Number Publication Date
FR1142705A true FR1142705A (en) 1957-09-20

Family

ID=9643467

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1142705D Expired FR1142705A (en) 1956-02-16 1956-02-16 Light signaling method and device

Country Status (1)

Country Link
FR (1) FR1142705A (en)

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