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FR540884A - Railway needle - Google Patents

Railway needle

Info

Publication number
FR540884A
FR540884A FR540884DA FR540884A FR 540884 A FR540884 A FR 540884A FR 540884D A FR540884D A FR 540884DA FR 540884 A FR540884 A FR 540884A
Authority
FR
France
Prior art keywords
railway
needle
railway needle
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
Fielding A Day
Grover C Day
George Hart
Riley Hart
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 FR540884A publication Critical patent/FR540884A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/10—Frogs
    • E01B7/14—Frogs with movable parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
FR540884D 1921-09-08 1921-09-08 Railway needle Expired FR540884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR540884T 1921-09-08

Publications (1)

Publication Number Publication Date
FR540884A true FR540884A (en) 1922-07-19

Family

ID=8929728

Family Applications (1)

Application Number Title Priority Date Filing Date
FR540884D Expired FR540884A (en) 1921-09-08 1921-09-08 Railway needle

Country Status (1)

Country Link
FR (1) FR540884A (en)

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