FR742509A - - Google Patents

Info

Publication number
FR742509A
FR742509A FR742509DA FR742509A FR 742509 A FR742509 A FR 742509A FR 742509D A FR742509D A FR 742509DA FR 742509 A FR742509 A FR 742509A
Authority
FR
France
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)
Publication date
Application granted granted Critical
Publication of FR742509A publication Critical patent/FR742509A/fr
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
    • E01B7/12—Fixed frogs made of one part or composite

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
FR742509D Expired FR742509A (cg-RX-API-DMAC10.html)

Publications (1)

Publication Number Publication Date
FR742509A true FR742509A (cg-RX-API-DMAC10.html) 1933-03-08

Family

ID=1546909

Family Applications (1)

Application Number Title Priority Date Filing Date
FR742509D Expired FR742509A (cg-RX-API-DMAC10.html)

Country Status (1)

Country Link
FR (1) FR742509A (cg-RX-API-DMAC10.html)

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