BE412429A - - Google Patents

Info

Publication number
BE412429A
BE412429A BE412429DA BE412429A BE 412429 A BE412429 A BE 412429A BE 412429D A BE412429D A BE 412429DA BE 412429 A BE412429 A BE 412429A
Authority
BE
Belgium
Application number
Filing date
Publication date
Application filed filed Critical
Publication of BE412429A publication Critical patent/BE412429A/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)
BE412429D 1935-11-22 BE412429A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE412429T

Publications (1)

Publication Number Publication Date
BE412429A true BE412429A (enrdf_load_html_response) 1935-12-31

Family

ID=3869244

Family Applications (1)

Application Number Title Priority Date Filing Date
BE412429D BE412429A (enrdf_load_html_response) 1935-11-22

Country Status (2)

Country Link
BE (1) BE412429A (enrdf_load_html_response)
FR (1) FR798069A (enrdf_load_html_response)

Also Published As

Publication number Publication date
FR798069A (fr) 1936-05-08

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