NO55502A - - Google Patents
Info
- Publication number
- NO55502A NO55502A NO55502DA NO55502A NO 55502 A NO55502 A NO 55502A NO 55502D A NO55502D A NO 55502DA NO 55502 A NO55502 A NO 55502A
- Authority
- NO
- Norway
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods
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)
- Drilling Tools (AREA)
- Gripping On Spindles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US414322XA | 1933-04-19 | 1933-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO55502A true NO55502A (en) |
Family
ID=21916481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO55502D NO55502A (en) | 1933-04-19 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB414322A (en) |
| NO (1) | NO55502A (en) |
-
0
- NO NO55502D patent/NO55502A/no unknown
-
1934
- 1934-03-20 GB GB8712/34A patent/GB414322A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB414322A (en) | 1934-08-02 |