FR714611A - Drilling tool - Google Patents

Drilling tool

Info

Publication number
FR714611A
FR714611A FR714611DA FR714611A FR 714611 A FR714611 A FR 714611A FR 714611D A FR714611D A FR 714611DA FR 714611 A FR714611 A FR 714611A
Authority
FR
France
Prior art keywords
drilling tool
drilling
tool
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)
Inventor
Jean-Charles-Samuel Berthiez
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 filed Critical
Application granted granted Critical
Publication of FR714611A publication Critical patent/FR714611A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/16—Roller bits characterised by tooth form or arrangement
FR714611D 1931-04-02 1931-04-02 Drilling tool Expired FR714611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR714611T 1931-04-02

Publications (1)

Publication Number Publication Date
FR714611A true FR714611A (en) 1931-11-17

Family

ID=9087874

Family Applications (1)

Application Number Title Priority Date Filing Date
FR714611D Expired FR714611A (en) 1931-04-02 1931-04-02 Drilling tool

Country Status (1)

Country Link
FR (1) FR714611A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552463A (en) * 1948-03-10 1951-05-08 Taylor Instrument Co Coolant means for drills
US2587980A (en) * 1947-04-14 1952-03-04 Nat Tool Salvage Company Drill
US3710676A (en) * 1971-11-18 1973-01-16 Central Screw Co Self-drilling and thread-forming screw
US4984944A (en) * 1987-02-09 1991-01-15 Vermont American Corporation Drill bit blade for masonry and rock drill
US6213692B1 (en) * 1995-03-30 2001-04-10 Vilab Ag Cutting tool

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587980A (en) * 1947-04-14 1952-03-04 Nat Tool Salvage Company Drill
US2552463A (en) * 1948-03-10 1951-05-08 Taylor Instrument Co Coolant means for drills
US3710676A (en) * 1971-11-18 1973-01-16 Central Screw Co Self-drilling and thread-forming screw
US4984944A (en) * 1987-02-09 1991-01-15 Vermont American Corporation Drill bit blade for masonry and rock drill
US6213692B1 (en) * 1995-03-30 2001-04-10 Vilab Ag Cutting tool

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