DE2062819A1 - - Google Patents
Info
- Publication number
- DE2062819A1 DE2062819A1 DE19702062819 DE2062819A DE2062819A1 DE 2062819 A1 DE2062819 A1 DE 2062819A1 DE 19702062819 DE19702062819 DE 19702062819 DE 2062819 A DE2062819 A DE 2062819A DE 2062819 A1 DE2062819 A1 DE 2062819A1
- Authority
- DE
- Germany
- 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.)
- Granted
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
- E21B10/44—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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702062819 DE2062819C (de) | 1970-12-21 | Bohrkopf fur ein Drehbohrgerat und hierfür verwendete Forderschnecke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702062819 DE2062819C (de) | 1970-12-21 | Bohrkopf fur ein Drehbohrgerat und hierfür verwendete Forderschnecke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2062819A1 true DE2062819A1 (enExample) | 1972-02-03 |
| DE2062819C DE2062819C (de) | 1973-07-05 |
Family
ID=
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C2 | Grant after previous publication (2nd publication) |