NL263085A - - Google Patents
Info
- Publication number
- NL263085A NL263085A NL263085DA NL263085A NL 263085 A NL263085 A NL 263085A NL 263085D A NL263085D A NL 263085DA NL 263085 A NL263085 A NL 263085A
- Authority
- NL
- Netherlands
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2943159A GB932205A (en) | 1959-08-28 | 1959-08-28 | Improvements in or relating to earth and rock drilling bits |
| GB3365659 | 1959-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL263085A true NL263085A (xx) |
Family
ID=26259914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL263085D NL263085A (xx) | 1959-08-28 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3186501A (xx) |
| BE (1) | BE603562A (xx) |
| DE (1) | DE1188529B (xx) |
| FR (1) | FR1287225A (xx) |
| GB (1) | GB832205A (xx) |
| NL (1) | NL263085A (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3327794A (en) * | 1964-10-16 | 1967-06-27 | Ernest S Creel | Drill bit assembly |
| AU539088B2 (en) * | 1979-01-12 | 1984-09-13 | Kennametal Inc. | Detachable roller bit rotary cone cutter |
| DE3021733C2 (de) * | 1980-06-10 | 1982-09-30 | Kennametal Inc., 15650 Latrobe, Pa. | Kegelrollendrehmeißel |
| EP0059497B1 (en) * | 1981-03-02 | 1985-05-15 | Agfa-Gevaert N.V. | Photographic silver halide colour materials and process for the production of dye images by diffusion transfer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2656153A (en) * | 1949-09-12 | 1953-10-20 | Thomas A White | Rotary drilling bit |
| US2890020A (en) * | 1949-11-30 | 1959-06-09 | Herbert J Hawthorne | Removable blade drag bits |
| US2831657A (en) * | 1949-11-30 | 1958-04-22 | Herbert J Hawthorne | Removable blade drag bits |
| US2599854A (en) * | 1949-12-10 | 1952-06-10 | Paul A Mcmurdy | Well-drilling bit |
| US2783973A (en) * | 1951-02-20 | 1957-03-05 | Herbert J Hawthorne | Drill bit |
| US2859942A (en) * | 1957-05-15 | 1958-11-11 | Earl M Weaver | Detachable blade bit |
| US3039548A (en) * | 1958-01-30 | 1962-06-19 | Wendell Coffee | Detachable blade bit |
-
0
- NL NL263085D patent/NL263085A/xx unknown
- BE BE603562D patent/BE603562A/xx unknown
-
1956
- 1956-04-23 GB GB12380/56A patent/GB832205A/en not_active Expired
-
1960
- 1960-08-01 US US46807A patent/US3186501A/en not_active Expired - Lifetime
-
1961
- 1961-03-30 DE DEP26867A patent/DE1188529B/de active Pending
- 1961-04-26 FR FR859944A patent/FR1287225A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB832205A (en) | 1960-04-06 |
| US3186501A (en) | 1965-06-01 |
| FR1287225A (fr) | 1962-03-09 |
| BE603562A (xx) | |
| DE1188529B (de) | 1965-03-11 |