FR489337A - Perforatrice - Google Patents

Perforatrice

Info

Publication number
FR489337A
FR489337A FR489337DA FR489337A FR 489337 A FR489337 A FR 489337A FR 489337D A FR489337D A FR 489337DA FR 489337 A FR489337 A FR 489337A
Authority
FR
France
Prior art keywords
punch
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
Axel Bernhard Kjellgren
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR489337A publication Critical patent/FR489337A/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
    • E21B6/00—Drives for drilling with combined rotary and percussive action

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)
FR489337D 1917-04-20 1918-03-19 Perforatrice Expired FR489337A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE489337X 1917-04-20

Publications (1)

Publication Number Publication Date
FR489337A true FR489337A (fr) 1919-01-22

Family

ID=1525588

Family Applications (1)

Application Number Title Priority Date Filing Date
FR489337D Expired FR489337A (fr) 1917-04-20 1918-03-19 Perforatrice

Country Status (1)

Country Link
FR (1) FR489337A (fr)

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