FR525222A - Forets pour percer la roche - Google Patents

Forets pour percer la roche

Info

Publication number
FR525222A
FR525222A FR525222A FR525222DA FR525222A FR 525222 A FR525222 A FR 525222A FR 525222 A FR525222 A FR 525222A FR 525222D A FR525222D A FR 525222DA FR 525222 A FR525222 A FR 525222A
Authority
FR
France
Prior art keywords
drill bits
drilling rock
rock
drilling
drill
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
FR525222A
Other languages
English (en)
Inventor
Fred Wallace Thurston
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 FR525222A publication Critical patent/FR525222A/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
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable

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)
FR525222A 1920-09-29 1920-09-29 Forets pour percer la roche Expired FR525222A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR525222T 1920-09-29

Publications (1)

Publication Number Publication Date
FR525222A true FR525222A (fr) 1921-09-17

Family

ID=8919918

Family Applications (1)

Application Number Title Priority Date Filing Date
FR525222A Expired FR525222A (fr) 1920-09-29 1920-09-29 Forets pour percer la roche

Country Status (1)

Country Link
FR (1) FR525222A (fr)

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