BE523769A - - Google Patents

Info

Publication number
BE523769A
BE523769A BE523769DA BE523769A BE 523769 A BE523769 A BE 523769A BE 523769D A BE523769D A BE 523769DA BE 523769 A BE523769 A BE 523769A
Authority
BE
Belgium
Application number
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.)
Publication of BE523769A publication Critical patent/BE523769A/xx

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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
BE523769D 1952-10-25 BE523769A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1084882X 1952-10-25

Publications (1)

Publication Number Publication Date
BE523769A true BE523769A (enrdf_load_html_response)

Family

ID=7721311

Family Applications (1)

Application Number Title Priority Date Filing Date
BE523769D BE523769A (enrdf_load_html_response) 1952-10-25

Country Status (2)

Country Link
BE (1) BE523769A (enrdf_load_html_response)
FR (1) FR1084882A (enrdf_load_html_response)

Also Published As

Publication number Publication date
FR1084882A (fr) 1955-01-25

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