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AU112966B2 - Improvements relating to drilling apparatus - Google Patents
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AU112966B2 - Improvements relating to drilling apparatus - Google Patents

Improvements relating to drilling apparatus

Info

Publication number
AU112966B2
AU112966B2 AU1559/40A AU155940A AU112966B2 AU 112966 B2 AU112966 B2 AU 112966B2 AU 1559/40 A AU1559/40 A AU 1559/40A AU 155940 A AU155940 A AU 155940A AU 112966 B2 AU112966 B2 AU 112966B2
Authority
AU
Australia
Prior art keywords
drilling apparatus
improvements relating
relating
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
AU1559/40A
Other versions
AU155940A (en
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.)
Sullivan Machinery Co
Original Assignee
Sullivan Machinery Co
Filing date
Publication date
Application filed by Sullivan Machinery Co filed Critical Sullivan Machinery Co
Application granted granted Critical
Publication of AU112966B2 publication Critical patent/AU112966B2/en
Publication of AU155940A publication Critical patent/AU155940A/en
Expired legal-status Critical Current

Links

AU1559/40A 1940-04-19 Improvements relating to drilling apparatus Expired AU112966B2 (en)

Publications (2)

Publication Number Publication Date
AU112966B2 true AU112966B2 (en) 1941-05-01
AU155940A AU155940A (en) 1941-05-01

Family

ID=

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