BE523769A - - Google Patents
Info
- Publication number
- BE523769A BE523769A BE523769DA BE523769A BE 523769 A BE523769 A BE 523769A BE 523769D A BE523769D A BE 523769DA BE 523769 A BE523769 A BE 523769A
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1084882X | 1952-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE523769A true BE523769A (en:Method) |
Family
ID=7721311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE523769D BE523769A (en:Method) | 1952-10-25 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE523769A (en:Method) |
| FR (1) | FR1084882A (en:Method) |
-
0
- BE BE523769D patent/BE523769A/xx unknown
-
1953
- 1953-10-12 FR FR1084882D patent/FR1084882A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1084882A (fr) | 1955-01-25 |