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AU148098B2 - Improvements in rotary drill bits - Google Patents
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AU148098B2 - Improvements in rotary drill bits - Google Patents

Improvements in rotary drill bits

Info

Publication number
AU148098B2
AU148098B2 AU34364/50A AU3436450A AU148098B2 AU 148098 B2 AU148098 B2 AU 148098B2 AU 34364/50 A AU34364/50 A AU 34364/50A AU 3436450 A AU3436450 A AU 3436450A AU 148098 B2 AU148098 B2 AU 148098B2
Authority
AU
Australia
Prior art keywords
drill bits
rotary drill
rotary
bits
drill
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
AU34364/50A
Other versions
AU3436450A (en
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.)
Boart International Ltd
Original Assignee
Boart Products South Africa Ltd
Filing date
Publication date
Application filed by Boart Products South Africa Ltd filed Critical Boart Products South Africa Ltd
Application granted granted Critical
Publication of AU148098B2 publication Critical patent/AU148098B2/en
Publication of AU3436450A publication Critical patent/AU3436450A/en
Expired legal-status Critical Current

Links

AU34364/50A 1950-05-15 Improvements in rotary drill bits Expired AU148098B2 (en)

Publications (2)

Publication Number Publication Date
AU148098B2 true AU148098B2 (en) 1950-07-20
AU3436450A AU3436450A (en) 1950-07-20

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU642075B2 (en) * 1991-03-06 1993-10-07 Kennametal Inc. Rotary drill bit insert

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU642075B2 (en) * 1991-03-06 1993-10-07 Kennametal Inc. Rotary drill bit insert

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