FR691231A - Light signaling device - Google Patents

Light signaling device

Info

Publication number
FR691231A
FR691231A FR691231DA FR691231A FR 691231 A FR691231 A FR 691231A FR 691231D A FR691231D A FR 691231DA FR 691231 A FR691231 A FR 691231A
Authority
FR
France
Prior art keywords
signaling device
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
Raymond-Rodolphe Ludot
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 FR691231A publication Critical patent/FR691231A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR691231D 1930-03-06 1930-03-06 Light signaling device Expired FR691231A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR691231T 1930-03-06

Publications (1)

Publication Number Publication Date
FR691231A true FR691231A (en) 1930-10-02

Family

ID=9032723

Family Applications (1)

Application Number Title Priority Date Filing Date
FR691231D Expired FR691231A (en) 1930-03-06 1930-03-06 Light signaling device

Country Status (1)

Country Link
FR (1) FR691231A (en)

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