FR447821A - Tunnel and aqueduct system - Google Patents

Tunnel and aqueduct system

Info

Publication number
FR447821A
FR447821A FR447821DA FR447821A FR 447821 A FR447821 A FR 447821A FR 447821D A FR447821D A FR 447821DA FR 447821 A FR447821 A FR 447821A
Authority
FR
France
Prior art keywords
tunnel
aqueduct system
aqueduct
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
Robert Kaiser
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 FR447821A publication Critical patent/FR447821A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR447821D 1911-09-01 1912-08-30 Tunnel and aqueduct system Expired FR447821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH447821X 1911-09-01

Publications (1)

Publication Number Publication Date
FR447821A true FR447821A (en) 1913-01-16

Family

ID=1488482

Family Applications (1)

Application Number Title Priority Date Filing Date
FR447821D Expired FR447821A (en) 1911-09-01 1912-08-30 Tunnel and aqueduct system

Country Status (1)

Country Link
FR (1) FR447821A (en)

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