FR683956A - Foret de perforatrice pour roche - Google Patents
Foret de perforatrice pour rocheInfo
- Publication number
- FR683956A FR683956A FR683956DA FR683956A FR 683956 A FR683956 A FR 683956A FR 683956D A FR683956D A FR 683956DA FR 683956 A FR683956 A FR 683956A
- Authority
- FR
- France
- Prior art keywords
- drill bit
- rock drill
- rock
- bit
- drill
- 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
Links
- 239000011435 rock Substances 0.000 title 1
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE683956X | 1928-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR683956A true FR683956A (fr) | 1930-06-19 |
Family
ID=6597495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR683956D Expired FR683956A (fr) | 1928-10-27 | 1929-10-26 | Foret de perforatrice pour roche |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR683956A (fr) |
-
1929
- 1929-10-26 FR FR683956D patent/FR683956A/fr not_active Expired
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