AU2440145A - Improvements in drilling devices - Google Patents

Improvements in drilling devices

Info

Publication number
AU2440145A
AU2440145A AU24401/45A AU2440145A AU2440145A AU 2440145 A AU2440145 A AU 2440145A AU 24401/45 A AU24401/45 A AU 24401/45A AU 2440145 A AU2440145 A AU 2440145A AU 2440145 A AU2440145 A AU 2440145A
Authority
AU
Australia
Prior art keywords
drilling devices
drilling
devices
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
AU24401/45A
Other versions
AU126563B2 (en
Inventor
William Andreasson Rudolf
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.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of AU126563B2 publication Critical patent/AU126563B2/en
Publication of AU2440145A publication Critical patent/AU2440145A/en
Expired legal-status Critical Current

Links

AU24401/45A 1945-10-30 Improvements in drilling devices Expired AU126563B2 (en)

Publications (2)

Publication Number Publication Date
AU126563B2 AU126563B2 (en) 1948-01-29
AU2440145A true AU2440145A (en) 1948-01-29

Family

ID=

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