FR1157721A - Tarière pour le forage de trous - Google Patents

Tarière pour le forage de trous

Info

Publication number
FR1157721A
FR1157721A FR1157721DA FR1157721A FR 1157721 A FR1157721 A FR 1157721A FR 1157721D A FR1157721D A FR 1157721DA FR 1157721 A FR1157721 A FR 1157721A
Authority
FR
France
Prior art keywords
auger
drilling holes
drilling
holes
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
English (en)
Inventor
Richard Langer
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 FR1157721A publication Critical patent/FR1157721A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B11/00—Other drilling tools
    • E21B11/005—Hand operated drilling tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR1157721D 1955-10-03 1956-10-01 Tarière pour le forage de trous Expired FR1157721A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1157721X 1955-10-03

Publications (1)

Publication Number Publication Date
FR1157721A true FR1157721A (fr) 1958-06-03

Family

ID=7728091

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1157721D Expired FR1157721A (fr) 1955-10-03 1956-10-01 Tarière pour le forage de trous

Country Status (1)

Country Link
FR (1) FR1157721A (fr)

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