FR722550A - Improvements to balanced road barriers - Google Patents

Improvements to balanced road barriers

Info

Publication number
FR722550A
FR722550A FR722550DA FR722550A FR 722550 A FR722550 A FR 722550A FR 722550D A FR722550D A FR 722550DA FR 722550 A FR722550 A FR 722550A
Authority
FR
France
Prior art keywords
road barriers
balanced road
balanced
barriers
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
Pierre Bozo
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 FR722550A publication Critical patent/FR722550A/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
    • B61L29/02—Guards or obstacles for preventing access to the route

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR722550D 1931-07-04 1931-07-04 Improvements to balanced road barriers Expired FR722550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR722550T 1931-07-04

Publications (1)

Publication Number Publication Date
FR722550A true FR722550A (en) 1932-03-17

Family

ID=9101832

Family Applications (1)

Application Number Title Priority Date Filing Date
FR722550D Expired FR722550A (en) 1931-07-04 1931-07-04 Improvements to balanced road barriers

Country Status (1)

Country Link
FR (1) FR722550A (en)

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