FR55532E - Perfectionnements aux outils de perforation de roches - Google Patents

Perfectionnements aux outils de perforation de roches

Info

Publication number
FR55532E
FR55532E FR55532DA FR55532E FR 55532 E FR55532 E FR 55532E FR 55532D A FR55532D A FR 55532DA FR 55532 E FR55532 E FR 55532E
Authority
FR
France
Prior art keywords
rock drilling
drilling tools
tools
rock
drilling
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.)
Compagnie Ingersoll Rand
Original Assignee
Compagnie Ingersoll Rand
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 Compagnie Ingersoll Rand filed Critical Compagnie Ingersoll Rand
Application granted granted Critical
Publication of FR55532E publication Critical patent/FR55532E/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)
FR55532D 1941-08-14 1941-08-14 Perfectionnements aux outils de perforation de roches Expired FR55532E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR55532T 1941-08-14

Publications (1)

Publication Number Publication Date
FR55532E true FR55532E (fr) 1952-09-01

Family

ID=8689835

Family Applications (1)

Application Number Title Priority Date Filing Date
FR55532D Expired FR55532E (fr) 1941-08-14 1941-08-14 Perfectionnements aux outils de perforation de roches

Country Status (1)

Country Link
FR (1) FR55532E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447783A1 (fr) * 1979-02-02 1980-08-29 Hawera Probst Gmbh Foret a pierre ou beton avec tete de forage en metal dur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447783A1 (fr) * 1979-02-02 1980-08-29 Hawera Probst Gmbh Foret a pierre ou beton avec tete de forage en metal dur

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