FR661879A - Vertical dredge - Google Patents
Vertical dredgeInfo
- Publication number
- FR661879A FR661879A FR661879DA FR661879A FR 661879 A FR661879 A FR 661879A FR 661879D A FR661879D A FR 661879DA FR 661879 A FR661879 A FR 661879A
- Authority
- FR
- France
- Prior art keywords
- vertical dredge
- dredge
- vertical
- Prior art date
- 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
- E21B11/00—Other drilling tools
- E21B11/06—Other drilling tools with driven cutting chains or similarly driven tools
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 |
---|---|---|---|
FR661879T | 1928-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR661879A true FR661879A (en) | 1929-07-31 |
Family
ID=9011165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR661879D Expired FR661879A (en) | 1928-01-30 | 1928-01-30 | Vertical dredge |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR661879A (en) |
-
1928
- 1928-01-30 FR FR661879D patent/FR661879A/en not_active Expired
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