FR635091A - Boring bits - Google Patents
Boring bitsInfo
- Publication number
- FR635091A FR635091A FR635091DA FR635091A FR 635091 A FR635091 A FR 635091A FR 635091D A FR635091D A FR 635091DA FR 635091 A FR635091 A FR 635091A
- Authority
- FR
- France
- Prior art keywords
- boring bits
- boring
- bits
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
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 |
---|---|---|---|
US635091XA | 1927-01-12 | 1927-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR635091A true FR635091A (en) | 1928-03-07 |
Family
ID=22049677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR635091D Expired FR635091A (en) | 1927-01-12 | 1927-05-27 | Boring bits |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR635091A (en) |
-
1927
- 1927-05-27 FR FR635091D patent/FR635091A/en not_active Expired
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