FR570056A - Signal - Google Patents

Signal

Info

Publication number
FR570056A
FR570056A FR570056DA FR570056A FR 570056 A FR570056 A FR 570056A FR 570056D A FR570056D A FR 570056DA FR 570056 A FR570056 A FR 570056A
Authority
FR
France
Prior art keywords
signal
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
English (en)
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.)
AMERICAN GASACCUMULATOR CO
Original Assignee
AMERICAN GASACCUMULATOR CO
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 AMERICAN GASACCUMULATOR CO filed Critical AMERICAN GASACCUMULATOR CO
Application granted granted Critical
Publication of FR570056A publication Critical patent/FR570056A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/095—Traffic lights

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR570056D 1922-08-25 1923-08-24 Signal Expired FR570056A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US570056XA 1922-08-25 1922-08-25

Publications (1)

Publication Number Publication Date
FR570056A true FR570056A (fr) 1924-04-23

Family

ID=22007913

Family Applications (1)

Application Number Title Priority Date Filing Date
FR570056D Expired FR570056A (fr) 1922-08-25 1923-08-24 Signal

Country Status (1)

Country Link
FR (1) FR570056A (fr)

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