FR1552787A - - Google Patents
Info
- Publication number
- FR1552787A FR1552787A FR1552787DA FR1552787A FR 1552787 A FR1552787 A FR 1552787A FR 1552787D A FR1552787D A FR 1552787DA FR 1552787 A FR1552787 A FR 1552787A
- Authority
- FR
- France
- 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
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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
- E21B3/025—Surface drives for rotary drilling with a to-and-fro rotation of the tool
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 |
|---|---|---|---|
| FR61811 | 1966-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1552787A true FR1552787A (de) | 1969-01-10 |
Family
ID=8608785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1552787D Expired FR1552787A (de) | 1966-05-16 | 1966-05-16 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1552787A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0058222A1 (de) * | 1981-02-17 | 1982-08-25 | STAHL- UND APPARATEBAU HANS LEFFER GmbH | Hydraulische Verrohrungsmaschine für Pfahlgründungen und dazugehörige Steuerung |
-
1966
- 1966-05-16 FR FR1552787D patent/FR1552787A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0058222A1 (de) * | 1981-02-17 | 1982-08-25 | STAHL- UND APPARATEBAU HANS LEFFER GmbH | Hydraulische Verrohrungsmaschine für Pfahlgründungen und dazugehörige Steuerung |