BE525514A - - Google Patents
Info
- Publication number
- BE525514A BE525514A BE525514DA BE525514A BE 525514 A BE525514 A BE 525514A BE 525514D A BE525514D A BE 525514DA BE 525514 A BE525514 A BE 525514A
- Authority
- BE
- Belgium
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
- E21B6/00—Drives for drilling with combined rotary and percussive action
- E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Percussive Tools And Related Accessories (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE747783X | 1953-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE525514A true BE525514A (ja) |
Family
ID=6648702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE525514D BE525514A (ja) | 1953-01-08 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE525514A (ja) |
| GB (1) | GB747783A (ja) |
-
0
- BE BE525514D patent/BE525514A/xx unknown
-
1954
- 1954-01-08 GB GB644/54A patent/GB747783A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB747783A (en) | 1956-04-11 |