FR488833A - Perfectionnements aux perforatrices pneumatiques - Google Patents

Perfectionnements aux perforatrices pneumatiques

Info

Publication number
FR488833A
FR488833A FR488833DA FR488833A FR 488833 A FR488833 A FR 488833A FR 488833D A FR488833D A FR 488833DA FR 488833 A FR488833 A FR 488833A
Authority
FR
France
Prior art keywords
pneumatic punches
punches
pneumatic
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)
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Application granted granted Critical
Publication of FR488833A publication Critical patent/FR488833A/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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/03—Surface drives for rotary drilling with an intermittent unidirectional rotation of the tool

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)
FR488833D 1916-03-03 1916-03-03 Perfectionnements aux perforatrices pneumatiques Expired FR488833A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR488833T 1916-03-03

Publications (1)

Publication Number Publication Date
FR488833A true FR488833A (fr) 1918-11-19

Family

ID=1525147

Family Applications (1)

Application Number Title Priority Date Filing Date
FR488833D Expired FR488833A (fr) 1916-03-03 1916-03-03 Perfectionnements aux perforatrices pneumatiques

Country Status (1)

Country Link
FR (1) FR488833A (fr)

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