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AU242892B2 - Rock drill collar - Google Patents
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AU242892B2 - Rock drill collar - Google Patents

Rock drill collar

Info

Publication number
AU242892B2
AU242892B2 AU3610/61A AU361061A AU242892B2 AU 242892 B2 AU242892 B2 AU 242892B2 AU 3610/61 A AU3610/61 A AU 3610/61A AU 361061 A AU361061 A AU 361061A AU 242892 B2 AU242892 B2 AU 242892B2
Authority
AU
Australia
Prior art keywords
drill collar
rock drill
rock
collar
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
AU3610/61A
Other versions
AU361061A (en
Inventor
L. Mclean Ronald
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.)
Lord Manufacturing Co
Original Assignee
Lord Manufacturing Co
Filing date
Publication date
Application filed by Lord Manufacturing Co filed Critical Lord Manufacturing Co
Application granted granted Critical
Publication of AU361061A publication Critical patent/AU361061A/en
Publication of AU242892B2 publication Critical patent/AU242892B2/en
Expired legal-status Critical Current

Links

AU3610/61A 1961-04-17 Rock drill collar Expired AU242892B2 (en)

Publications (2)

Publication Number Publication Date
AU361061A AU361061A (en) 1963-02-07
AU242892B2 true AU242892B2 (en) 1963-02-07

Family

ID=

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