FR547612A - Method of execution of undergrounds - Google Patents

Method of execution of undergrounds

Info

Publication number
FR547612A
FR547612A FR547612DA FR547612A FR 547612 A FR547612 A FR 547612A FR 547612D A FR547612D A FR 547612DA FR 547612 A FR547612 A FR 547612A
Authority
FR
France
Prior art keywords
undergrounds
execution
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
Louis Potterat
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 FR547612A publication Critical patent/FR547612A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D13/00—Large underground chambers; Methods or apparatus for making them

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR547612D 1922-02-16 1922-02-16 Method of execution of undergrounds Expired FR547612A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR547612T 1922-02-16

Publications (1)

Publication Number Publication Date
FR547612A true FR547612A (en) 1922-12-20

Family

ID=8934329

Family Applications (1)

Application Number Title Priority Date Filing Date
FR547612D Expired FR547612A (en) 1922-02-16 1922-02-16 Method of execution of undergrounds

Country Status (1)

Country Link
FR (1) FR547612A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE895734C (en) * 1943-12-19 1953-11-05 Kohlenbergbau Leitung Deutsche Process for producing and upgrading routes
EP0517946A1 (en) * 1991-06-14 1992-12-16 SATO KOGYO CO., Ltd. Tunnel driving method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE895734C (en) * 1943-12-19 1953-11-05 Kohlenbergbau Leitung Deutsche Process for producing and upgrading routes
EP0517946A1 (en) * 1991-06-14 1992-12-16 SATO KOGYO CO., Ltd. Tunnel driving method

Similar Documents

Publication Publication Date Title
FR555052A (en) Improvements to pyrometers
FR547612A (en) Method of execution of undergrounds
FR547851A (en) Boxers set
FR570778A (en) Method of using
FR530552A (en) Method of performing metallurgical processes
FR25954E (en) Micrographic recording process
FR545734A (en) Advanced Forceps
FR557164A (en) Radioculture method and methods
FR586346A (en) Plowing method and winch
FR554150A (en) Drain plow
FR556664A (en) Plow
FR559400A (en) Plow
FR551021A (en) Further development of mechanical forceps
FR537697A (en) Method of execution of foundry model plates
FR550190A (en) Further development of concentrically-clamped chucks
FR565615A (en) Development of trouser tensioners
FR531627A (en) Metal drain applicable to all types of drums
FR562362A (en) Further development of switches
FI9257A (en) Teakkikare med reklaminrättning
FI9044A (en) Sträckverk med ändlösa styrremmar
FI9332A (en) Automobilram med avtagbar materiallåda
FI9213A (en) Sparspis med luftförvärmning
FI9123A (en) Dubbelskivhjul med delad hjullöt
FI8807A (en) Explosionsmotor med rotationskompressor
FI8764A (en) Smidesjärnsradiator med tryckförstärkningar