GB8332343D0 - Rotary drill bits - Google Patents

Rotary drill bits

Info

Publication number
GB8332343D0
GB8332343D0 GB838332343A GB8332343A GB8332343D0 GB 8332343 D0 GB8332343 D0 GB 8332343D0 GB 838332343 A GB838332343 A GB 838332343A GB 8332343 A GB8332343 A GB 8332343A GB 8332343 D0 GB8332343 D0 GB 8332343D0
Authority
GB
United Kingdom
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.)
Pending
Application number
GB838332343A
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.)
NL Petroleum Products Ltd
Original Assignee
NL Petroleum Products Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NL Petroleum Products Ltd filed Critical NL Petroleum Products Ltd
Priority to GB838332343A priority Critical patent/GB8332343D0/en
Publication of GB8332343D0 publication Critical patent/GB8332343D0/en
Priority to AU35925/84A priority patent/AU3592584A/en
Priority to AU36010/84A priority patent/AU578637B2/en
Priority to EP84308323A priority patent/EP0145422A3/en
Priority to BR8406135A priority patent/BR8406135A/en
Priority to EP84308333A priority patent/EP0145423B1/en
Priority to NO844773A priority patent/NO844773L/en
Priority to IE3078/84A priority patent/IE56039B1/en
Priority to GB08430288A priority patent/GB2152104B/en
Priority to NO844770A priority patent/NO844770L/en
Priority to DE8484308333T priority patent/DE3478626D1/en
Priority to GB08430291A priority patent/GB2151283B/en
Priority to BR8406134A priority patent/BR8406134A/en
Priority to US06/676,696 priority patent/US4679639A/en
Priority to JP25555084A priority patent/JPS60192081A/en
Priority to JP25554784A priority patent/JPS60199190A/en
Priority to CA000469192A priority patent/CA1237121A/en
Pending legal-status Critical Current

Links

GB838332343A 1983-12-03 1983-12-03 Rotary drill bits Pending GB8332343D0 (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
GB838332343A GB8332343D0 (en) 1983-12-03 1983-12-03 Rotary drill bits
AU35925/84A AU3592584A (en) 1983-12-03 1984-11-27 Rotary drill bit
AU36010/84A AU578637B2 (en) 1983-12-03 1984-11-29 Rotary drill bits and cutting elements for such bits
US06/676,696 US4679639A (en) 1983-12-03 1984-11-30 Rotary drill bits and cutting elements for such bits
GB08430288A GB2152104B (en) 1983-12-03 1984-11-30 Rotary drill bits and cutting elements for such bits
DE8484308333T DE3478626D1 (en) 1983-12-03 1984-11-30 Rotary drill bits and cutting elements for such bits
EP84308333A EP0145423B1 (en) 1983-12-03 1984-11-30 Rotary drill bits and cutting elements for such bits
NO844773A NO844773L (en) 1983-12-03 1984-11-30 CUTTING ELEMENT FOR DRILL CROWN AND PROCEDURE FOR PREPARING THE SAME
IE3078/84A IE56039B1 (en) 1983-12-03 1984-11-30 Rotary drill bits and cutting elements for such bits
EP84308323A EP0145422A3 (en) 1983-12-03 1984-11-30 Improvements in rotary drill bits
NO844770A NO844770L (en) 1983-12-03 1984-11-30 drill bit
BR8406135A BR8406135A (en) 1983-12-03 1984-11-30 CUTTING ELEMENT AND STRUCTURE FOR ROTATING DRILL BIT ROTATING DRILL BITING AND PROCESS FOR FORMING CUTTING ELEMENT
GB08430291A GB2151283B (en) 1983-12-03 1984-11-30 Improvements in rotary drill bits
BR8406134A BR8406134A (en) 1983-12-03 1984-11-30 ROTARY DRILL BIT
CA000469192A CA1237121A (en) 1983-12-03 1984-12-03 Rotary drill bits and cutting elements for such bits
JP25555084A JPS60192081A (en) 1983-12-03 1984-12-03 Rotary drill bit
JP25554784A JPS60199190A (en) 1983-12-03 1984-12-03 Cutting element of rotary drill bit and its formation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838332343A GB8332343D0 (en) 1983-12-03 1983-12-03 Rotary drill bits

Publications (1)

Publication Number Publication Date
GB8332343D0 true GB8332343D0 (en) 1984-01-11

Family

ID=10552803

Family Applications (1)

Application Number Title Priority Date Filing Date
GB838332343A Pending GB8332343D0 (en) 1983-12-03 1983-12-03 Rotary drill bits

Country Status (2)

Country Link
JP (2) JPS60199190A (en)
GB (1) GB8332343D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006009538A (en) * 2004-06-23 2006-01-12 Sanwa Kizai Co Ltd Excavating bit and excavating head
JP7299791B2 (en) * 2019-08-07 2023-06-28 Ｍｍｃリョウテック株式会社 drilling tips and drilling tools

Also Published As

Publication number Publication date
JPS60192081A (en) 1985-09-30
JPS60199190A (en) 1985-10-08

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