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AU289150B2 - An opal mining boring machine - Google Patents
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AU289150B2 - An opal mining boring machine - Google Patents

An opal mining boring machine

Info

Publication number
AU289150B2
AU289150B2 AU48307/64A AU4830764A AU289150B2 AU 289150 B2 AU289150 B2 AU 289150B2 AU 48307/64 A AU48307/64 A AU 48307/64A AU 4830764 A AU4830764 A AU 4830764A AU 289150 B2 AU289150 B2 AU 289150B2
Authority
AU
Australia
Prior art keywords
boring machine
opal
mining boring
opal mining
machine
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
AU48307/64A
Other versions
AU4830764A (en
Inventor
Goldsworthy Warwick
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.)
Warwick Gomjsworthy
Original Assignee
Warwick Gomjsworthy
Publication date
Application granted granted Critical
Publication of AU4830764A publication Critical patent/AU4830764A/en
Publication of AU289150B2 publication Critical patent/AU289150B2/en
Expired legal-status Critical Current

Links

AU48307/64A An opal mining boring machine Expired AU289150B2 (en)

Publications (2)

Publication Number Publication Date
AU4830764A AU4830764A (en) 1967-02-19
AU289150B2 true AU289150B2 (en) 1967-02-19

Family

ID=

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