FR988694A - Signaling system at road crossings - Google Patents

Signaling system at road crossings

Info

Publication number
FR988694A
FR988694A FR988694DA FR988694A FR 988694 A FR988694 A FR 988694A FR 988694D A FR988694D A FR 988694DA FR 988694 A FR988694 A FR 988694A
Authority
FR
France
Prior art keywords
signaling system
road crossings
crossings
road
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 Queneau
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 FR988694A publication Critical patent/FR988694A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/164—Centralised systems, e.g. external to vehicles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR988694D 1949-04-14 1949-04-14 Signaling system at road crossings Expired FR988694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR988694T 1949-04-14

Publications (1)

Publication Number Publication Date
FR988694A true FR988694A (en) 1951-08-30

Family

ID=9539674

Family Applications (1)

Application Number Title Priority Date Filing Date
FR988694D Expired FR988694A (en) 1949-04-14 1949-04-14 Signaling system at road crossings

Country Status (1)

Country Link
FR (1) FR988694A (en)

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