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FR721664A - Automatic signaling device for road crossings - Google Patents

Automatic signaling device for road crossings

Info

Publication number
FR721664A
FR721664A FR721664DA FR721664A FR 721664 A FR721664 A FR 721664A FR 721664D A FR721664D A FR 721664DA FR 721664 A FR721664 A FR 721664A
Authority
FR
France
Prior art keywords
signaling device
automatic signaling
road crossings
crossings
road
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
Nicolas Gherassimoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AVERTISSEUR FERROVOIE SOC D
Original Assignee
AVERTISSEUR FERROVOIE SOC D
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 by AVERTISSEUR FERROVOIE SOC D filed Critical AVERTISSEUR FERROVOIE SOC D
Application granted granted Critical
Publication of FR721664A publication Critical patent/FR721664A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/02—Detecting movement of traffic to be counted or controlled using treadles built into the road

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR721664D 1930-11-17 1930-11-17 Automatic signaling device for road crossings Expired FR721664A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR721664T 1930-11-17

Publications (1)

Publication Number Publication Date
FR721664A true FR721664A (en) 1932-03-07

Family

ID=9098266

Family Applications (1)

Application Number Title Priority Date Filing Date
FR721664D Expired FR721664A (en) 1930-11-17 1930-11-17 Automatic signaling device for road crossings

Country Status (1)

Country Link
FR (1) FR721664A (en)

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