FR699516A - Automatic traffic control device - Google Patents

Automatic traffic control device

Info

Publication number
FR699516A
FR699516A FR699516DA FR699516A FR 699516 A FR699516 A FR 699516A FR 699516D A FR699516D A FR 699516DA FR 699516 A FR699516 A FR 699516A
Authority
FR
France
Prior art keywords
control device
traffic control
automatic traffic
automatic
traffic
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)
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.)
AUTOMATIC SIGNAL CORP
Original Assignee
AUTOMATIC SIGNAL CORP
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 AUTOMATIC SIGNAL CORP filed Critical AUTOMATIC SIGNAL CORP
Application granted granted Critical
Publication of FR699516A publication Critical patent/FR699516A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G08G1/08—Controlling traffic signals according to detected number or speed of vehicles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR699516D 1930-04-08 1930-05-19 Automatic traffic control device Expired FR699516A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US699516XA 1930-04-08 1930-04-08

Publications (1)

Publication Number Publication Date
FR699516A true FR699516A (en) 1931-02-16

Family

ID=22092206

Family Applications (1)

Application Number Title Priority Date Filing Date
FR699516D Expired FR699516A (en) 1930-04-08 1930-05-19 Automatic traffic control device

Country Status (1)

Country Link
FR (1) FR699516A (en)

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