DD40351A - - Google Patents
Info
- Publication number
- DD40351A DD40351A DD8586665A DD8586665A DD40351A DD 40351 A DD40351 A DD 40351A DD 8586665 A DD8586665 A DD 8586665A DD 8586665 A DD8586665 A DD 8586665A DD 40351 A DD40351 A DD 40351A
- Authority
- DD
- German Democratic Republic
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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/58—Chisel-type inserts
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD8586663 | 1963-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD40351A true DD40351A (en) | 1965-08-05 |
Family
ID=5477913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD8586665A DD40351A (en) | 1963-06-14 | 1963-06-14 |
Country Status (1)
| Country | Link |
|---|---|
| DD (1) | DD40351A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2917664A1 (en) * | 1979-05-02 | 1980-11-13 | Christensen Inc | ROTARY DRILL CHISEL FOR DEEP HOLES |
| DE3113109A1 (en) * | 1981-04-01 | 1982-11-04 | Christensen, Inc., 84115 Salt Lake City, Utah | ROTARY DRILL CHISEL FOR DEEP HOLES |
-
1963
- 1963-06-14 DD DD8586665A patent/DD40351A/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2917664A1 (en) * | 1979-05-02 | 1980-11-13 | Christensen Inc | ROTARY DRILL CHISEL FOR DEEP HOLES |
| DE3113109A1 (en) * | 1981-04-01 | 1982-11-04 | Christensen, Inc., 84115 Salt Lake City, Utah | ROTARY DRILL CHISEL FOR DEEP HOLES |