FR470167A - Underground railway construction - Google Patents

Underground railway construction

Info

Publication number
FR470167A
FR470167A FR470167DA FR470167A FR 470167 A FR470167 A FR 470167A FR 470167D A FR470167D A FR 470167DA FR 470167 A FR470167 A FR 470167A
Authority
FR
France
Prior art keywords
railway construction
underground railway
underground
construction
railway
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
Alphonsus Ligouri Drum
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR470167A publication Critical patent/FR470167A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00—Other railway systems
    • B61B13/10—Tunnel systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
FR470167D 1913-04-01 1914-03-27 Underground railway construction Expired FR470167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US470167XA 1913-04-01 1913-04-01

Publications (1)

Publication Number Publication Date
FR470167A true FR470167A (en) 1914-08-25

Family

ID=1508556

Family Applications (1)

Application Number Title Priority Date Filing Date
FR470167D Expired FR470167A (en) 1913-04-01 1914-03-27 Underground railway construction

Country Status (1)

Country Link
FR (1) FR470167A (en)

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