FR2439273B3 - - Google Patents
Info
- Publication number
- FR2439273B3 FR2439273B3 FR7829873A FR7829873A FR2439273B3 FR 2439273 B3 FR2439273 B3 FR 2439273B3 FR 7829873 A FR7829873 A FR 7829873A FR 7829873 A FR7829873 A FR 7829873A FR 2439273 B3 FR2439273 B3 FR 2439273B3
- 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
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- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/001—Drilling a non circular hole
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/06—Dredgers; Soil-shifting machines mechanically-driven with digging screws
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7829873A FR2439273A1 (fr) | 1978-10-18 | 1978-10-18 | Trancheuse a percussion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7829873A FR2439273A1 (fr) | 1978-10-18 | 1978-10-18 | Trancheuse a percussion |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2439273A1 FR2439273A1 (fr) | 1980-05-16 |
FR2439273B3 true FR2439273B3 (fr) | 1981-07-17 |
Family
ID=9213965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7829873A Granted FR2439273A1 (fr) | 1978-10-18 | 1978-10-18 | Trancheuse a percussion |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2439273A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2491519A1 (fr) * | 1980-10-03 | 1982-04-09 | Campguilhem Jacques | Trancheuse a rotopercussion |
IT1291804B1 (it) * | 1997-03-17 | 1999-01-21 | Miro Cesare Mati | Attrezzatura per la lavorazione di un terreno senza escavazioni demolitive |
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1978
- 1978-10-18 FR FR7829873A patent/FR2439273A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2439273A1 (fr) | 1980-05-16 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |