AU637718A - Improvements in drilling' means - Google Patents

Improvements in drilling' means

Info

Publication number
AU637718A
AU637718A AU6377/18A AU637718A AU637718A AU 637718 A AU637718 A AU 637718A AU 6377/18 A AU6377/18 A AU 6377/18A AU 637718 A AU637718 A AU 637718A AU 637718 A AU637718 A AU 637718A
Authority
AU
Australia
Prior art keywords
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
AU6377/18A
Inventor
Frederick Brooke George
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
Publication of AU637718A publication Critical patent/AU637718A/en
Expired legal-status Critical Current

Links

AU6377/18A 1918-01-29 Improvements in drilling' means Expired AU637718A (en)

Publications (1)

Publication Number Publication Date
AU637718A true AU637718A (en) 1918-07-30

Family

ID=

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