FR781697A - Drive wrench for round parts - Google Patents

Drive wrench for round parts

Info

Publication number
FR781697A
FR781697A FR781697DA FR781697A FR 781697 A FR781697 A FR 781697A FR 781697D A FR781697D A FR 781697DA FR 781697 A FR781697 A FR 781697A
Authority
FR
France
Prior art keywords
round parts
drive wrench
wrench
drive
round
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)
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.)
Const Schwartz Hautmont SA Des
Original Assignee
Const Schwartz Hautmont SA Des
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 Const Schwartz Hautmont SA Des filed Critical Const Schwartz Hautmont SA Des
Application granted granted Critical
Publication of FR781697A publication Critical patent/FR781697A/en
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
    • E21B3/025—Surface drives for rotary drilling with a to-and-fro 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)
FR781697D 1934-11-22 1934-11-22 Drive wrench for round parts Expired FR781697A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR781697T 1934-11-22

Publications (1)

Publication Number Publication Date
FR781697A true FR781697A (en) 1935-05-20

Family

ID=9209168

Family Applications (1)

Application Number Title Priority Date Filing Date
FR781697D Expired FR781697A (en) 1934-11-22 1934-11-22 Drive wrench for round parts

Country Status (1)

Country Link
FR (1) FR781697A (en)

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