SU578420A1 - Буровое долото - Google Patents
Буровое долотоInfo
- Publication number
- SU578420A1 SU578420A1 SU7201750618A SU1750618A SU578420A1 SU 578420 A1 SU578420 A1 SU 578420A1 SU 7201750618 A SU7201750618 A SU 7201750618A SU 1750618 A SU1750618 A SU 1750618A SU 578420 A1 SU578420 A1 SU 578420A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- drill bit
- drill
- bit
- Prior art date
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7201750618A SU578420A1 (ru) | 1972-02-22 | 1972-02-22 | Буровое долото |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7201750618A SU578420A1 (ru) | 1972-02-22 | 1972-02-22 | Буровое долото |
Publications (1)
Publication Number | Publication Date |
---|---|
SU578420A1 true SU578420A1 (ru) | 1977-10-30 |
Family
ID=20503950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU7201750618A SU578420A1 (ru) | 1972-02-22 | 1972-02-22 | Буровое долото |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU578420A1 (ru) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4496013A (en) * | 1982-08-23 | 1985-01-29 | Smith International, Inc. | Prevention of cone seal failures in rock bits |
US4624329A (en) * | 1984-02-15 | 1986-11-25 | Varel Manufacturing Company | Rotating cutter drill set |
-
1972
- 1972-02-22 SU SU7201750618A patent/SU578420A1/ru active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4496013A (en) * | 1982-08-23 | 1985-01-29 | Smith International, Inc. | Prevention of cone seal failures in rock bits |
US4624329A (en) * | 1984-02-15 | 1986-11-25 | Varel Manufacturing Company | Rotating cutter drill set |
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