FR1471067A - Foret pour roches - Google Patents

Foret pour roches

Info

Publication number
FR1471067A
FR1471067A FR53245A FR53245A FR1471067A FR 1471067 A FR1471067 A FR 1471067A FR 53245 A FR53245 A FR 53245A FR 53245 A FR53245 A FR 53245A FR 1471067 A FR1471067 A FR 1471067A
Authority
FR
France
Prior art keywords
rock drill
drill
rock
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
FR53245A
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.)
Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG
Original Assignee
Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG
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 Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG filed Critical Hawera Probst Hartmetall Werk Zeugfabrik Ravensburgh KG
Priority to FR53245A priority Critical patent/FR1471067A/fr
Application granted granted Critical
Publication of FR1471067A publication Critical patent/FR1471067A/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure

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)
FR53245A 1966-03-12 1966-03-12 Foret pour roches Expired FR1471067A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR53245A FR1471067A (fr) 1966-03-12 1966-03-12 Foret pour roches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR53245A FR1471067A (fr) 1966-03-12 1966-03-12 Foret pour roches

Publications (1)

Publication Number Publication Date
FR1471067A true FR1471067A (fr) 1967-02-24

Family

ID=8603651

Family Applications (1)

Application Number Title Priority Date Filing Date
FR53245A Expired FR1471067A (fr) 1966-03-12 1966-03-12 Foret pour roches

Country Status (1)

Country Link
FR (1) FR1471067A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458769A (en) * 1980-04-16 1984-07-10 Hilti Aktiengesellschaft Rock drill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458769A (en) * 1980-04-16 1984-07-10 Hilti Aktiengesellschaft Rock drill
US4549616A (en) * 1980-04-16 1985-10-29 Hilti Aktiengesellschaft Rock drill

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