FR1061444A - Mine drill bit - Google Patents

Mine drill bit

Info

Publication number
FR1061444A
FR1061444A FR1061444DA FR1061444A FR 1061444 A FR1061444 A FR 1061444A FR 1061444D A FR1061444D A FR 1061444DA FR 1061444 A FR1061444 A FR 1061444A
Authority
FR
France
Prior art keywords
drill bit
mine drill
mine
bit
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
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.)
Gebrueder Boehler and Co AG
Original Assignee
Gebrueder Boehler and Co AG
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 Gebrueder Boehler and Co AG filed Critical Gebrueder Boehler and Co AG
Application granted granted Critical
Publication of FR1061444A publication Critical patent/FR1061444A/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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion

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)
FR1061444D 1952-08-13 1952-08-13 Mine drill bit Expired FR1061444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1061444T 1952-08-13

Publications (1)

Publication Number Publication Date
FR1061444A true FR1061444A (en) 1954-04-12

Family

ID=9600179

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1061444D Expired FR1061444A (en) 1952-08-13 1952-08-13 Mine drill bit

Country Status (1)

Country Link
FR (1) FR1061444A (en)

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