FR360088A - Foret pour roches - Google Patents

Foret pour roches

Info

Publication number: FR360088A
Authority: FR; France
Prior art keywords: rock drill; drill; rock
Prior art date: 1905-12-05
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

Inventor

Franz Schwarze

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.)

Individual

Original Assignee

Individual

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.)

1905-12-05

Filing date

1905-12-05

Publication date

1906-04-12

1905-12-05 Application filed by Individual filed Critical Individual

1906-04-12 Application granted granted Critical

1906-04-12 Publication of FR360088A publication Critical patent/FR360088A/fr

Status Expired legal-status Critical Current

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
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts

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)

FR360088D 1905-12-05 1905-12-05 Foret pour roches Expired FR360088A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR360088T		1905-12-05

Publications (1)

Publication Number	Publication Date
FR360088A true FR360088A (fr)	1906-04-12

Family

ID=1407818

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR360088D Expired FR360088A (fr)	1905-12-05	1905-12-05	Foret pour roches

Country Status (1)

Country	Link
FR (1)	FR360088A (fr)

1905
- 1905-12-05 FR FR360088D patent/FR360088A/fr not_active Expired

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