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AU428615B2 - Improvements in percussive well drill bit - Google Patents
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AU428615B2 - Improvements in percussive well drill bit - Google Patents

Improvements in percussive well drill bit

Info

Publication number
AU428615B2
AU428615B2 AU30289/67A AU3028967A AU428615B2 AU 428615 B2 AU428615 B2 AU 428615B2 AU 30289/67 A AU30289/67 A AU 30289/67A AU 3028967 A AU3028967 A AU 3028967A AU 428615 B2 AU428615 B2 AU 428615B2
Authority
AU
Australia
Prior art keywords
percussive
drill bit
well drill
well
bit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU30289/67A
Other versions
AU3028967A (en
Inventor
ROLAND HALLUM and KARL AUGUST VALDEMAR MAGNUSSON BJORN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
Filing date
Publication date
Application filed by Atlas Copco AB filed Critical Atlas Copco AB
Application granted granted Critical
Publication of AU3028967A publication Critical patent/AU3028967A/en
Publication of AU428615B2 publication Critical patent/AU428615B2/en
Expired legal-status Critical Current

Links

AU30289/67A 1967-11-24 Improvements in percussive well drill bit Expired AU428615B2 (en)

Publications (2)

Publication Number Publication Date
AU3028967A AU3028967A (en) 1969-05-29
AU428615B2 true AU428615B2 (en) 1969-05-29

Family

ID=

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