NL7114401A - - Google Patents
Info
- Publication number
- NL7114401A NL7114401A NL7114401A NL7114401A NL7114401A NL 7114401 A NL7114401 A NL 7114401A NL 7114401 A NL7114401 A NL 7114401A NL 7114401 A NL7114401 A NL 7114401A NL 7114401 A NL7114401 A NL 7114401A
- Authority
- NL
- Netherlands
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
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
- E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
- Drilling Tools (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702057892 DE2057892A1 (de) | 1970-11-25 | 1970-11-25 | Gesteinsbohrer fuer Schlagbohrmaschinen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7114401A true NL7114401A (it) | 1972-05-29 |
Family
ID=5789029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7114401A NL7114401A (it) | 1970-11-25 | 1971-10-20 |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT313220B (it) |
| CH (1) | CH525753A (it) |
| DE (1) | DE2057892A1 (it) |
| FR (1) | FR2115828A5 (it) |
| GB (1) | GB1362292A (it) |
| IT (1) | IT941107B (it) |
| NL (1) | NL7114401A (it) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH626557A5 (it) * | 1978-09-28 | 1981-11-30 | Guex Philippe & Fils Sa | |
| DE3014693A1 (de) * | 1980-04-16 | 1981-10-22 | Hilti AG, 9494 Schaan | Gesteinsbohrer |
| DE4338667A1 (de) * | 1993-11-12 | 1995-05-18 | Hilti Ag | Bohrwerkzeug |
| US5641028A (en) * | 1995-08-10 | 1997-06-24 | Black & Decker Inc. | Drill bit with debris conveying flute |
| GB2393681A (en) | 2002-10-03 | 2004-04-07 | Black & Decker Inc | Masonry drilling tool |
-
1970
- 1970-11-25 DE DE19702057892 patent/DE2057892A1/de active Pending
-
1971
- 1971-09-20 CH CH1368671A patent/CH525753A/de not_active IP Right Cessation
- 1971-09-22 AT AT819771A patent/AT313220B/de not_active IP Right Cessation
- 1971-10-20 NL NL7114401A patent/NL7114401A/xx unknown
- 1971-10-27 GB GB4988971A patent/GB1362292A/en not_active Expired
- 1971-11-05 FR FR7139712A patent/FR2115828A5/fr not_active Expired
- 1971-11-09 IT IT3085471A patent/IT941107B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2057892A1 (de) | 1972-06-08 |
| IT941107B (it) | 1973-03-01 |
| AT313220B (de) | 1974-02-11 |
| GB1362292A (en) | 1974-08-07 |
| FR2115828A5 (it) | 1972-07-07 |
| CH525753A (de) | 1972-07-31 |