FR470030A - Hand drill - Google Patents

Hand drill

Info

Publication number
FR470030A
FR470030A FR470030A FR470030DA FR470030A FR 470030 A FR470030 A FR 470030A FR 470030 A FR470030 A FR 470030A FR 470030D A FR470030D A FR 470030DA FR 470030 A FR470030 A FR 470030A
Authority
FR
France
Prior art keywords
hand drill
drill
hand
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
FR470030A
Other languages
French (fr)
Inventor
Johann Thadaus
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.)
JOHANN THADAUS
Original Assignee
JOHANN THADAUS
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 JOHANN THADAUS filed Critical JOHANN THADAUS
Application granted granted Critical
Publication of FR470030A publication Critical patent/FR470030A/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
    • E21B11/00—Other drilling tools
    • E21B11/005—Hand operated drilling tools
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods

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)
FR470030A 1914-03-24 1914-03-24 Hand drill Expired FR470030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR470030T 1914-03-24

Publications (1)

Publication Number Publication Date
FR470030A true FR470030A (en) 1914-08-18

Family

ID=1508435

Family Applications (1)

Application Number Title Priority Date Filing Date
FR470030A Expired FR470030A (en) 1914-03-24 1914-03-24 Hand drill

Country Status (1)

Country Link
FR (1) FR470030A (en)

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