FR662926A - Bouterolle, pour affûteuses de mêches de perforatrices - Google Patents

Bouterolle, pour affûteuses de mêches de perforatrices

Info

Publication number
FR662926A
FR662926A FR662926DA FR662926A FR 662926 A FR662926 A FR 662926A FR 662926D A FR662926D A FR 662926DA FR 662926 A FR662926 A FR 662926A
Authority
FR
France
Prior art keywords
bouterolle
sharpeners
drill bit
drill
bit
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)
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Application granted granted Critical
Publication of FR662926A publication Critical patent/FR662926A/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
    • E21B10/36—Percussion drill bits

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)
FR662926D 1928-07-27 1928-10-25 Bouterolle, pour affûteuses de mêches de perforatrices Expired FR662926A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US662926XA 1928-07-27 1928-07-27

Publications (1)

Publication Number Publication Date
FR662926A true FR662926A (fr) 1929-08-13

Family

ID=22068580

Family Applications (1)

Application Number Title Priority Date Filing Date
FR662926D Expired FR662926A (fr) 1928-07-27 1928-10-25 Bouterolle, pour affûteuses de mêches de perforatrices

Country Status (1)

Country Link
FR (1) FR662926A (fr)

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