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AU231377B2 - Multiple drilling - Google Patents
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AU231377B2 - Multiple drilling - Google Patents

Multiple drilling

Info

Publication number
AU231377B2
AU231377B2 AU47980/59A AU4798059A AU231377B2 AU 231377 B2 AU231377 B2 AU 231377B2 AU 47980/59 A AU47980/59 A AU 47980/59A AU 4798059 A AU4798059 A AU 4798059A AU 231377 B2 AU231377 B2 AU 231377B2
Authority
AU
Australia
Prior art keywords
multiple drilling
drilling
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
AU47980/59A
Other versions
AU4798059A (en
Inventor
Bolla Eugene
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.)
Gamma Design Engineering Co Pty Ltd
Original Assignee
Gamma Design Engineering Co Pty Ltd
Filing date
Publication date
Application filed by Gamma Design Engineering Co Pty Ltd filed Critical Gamma Design Engineering Co Pty Ltd
Application granted granted Critical
Publication of AU231377B2 publication Critical patent/AU231377B2/en
Publication of AU4798059A publication Critical patent/AU4798059A/en
Expired legal-status Critical Current

Links

AU47980/59A 1959-04-20 Multiple drilling Expired AU231377B2 (en)

Publications (2)

Publication Number Publication Date
AU231377B2 true AU231377B2 (en) 1959-10-22
AU4798059A AU4798059A (en) 1959-10-22

Family

ID=

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