AU211953B2 - Improvement in mobile rock drill rigs - Google Patents

Improvement in mobile rock drill rigs

Info

Publication number
AU211953B2
AU211953B2 AU26109/57A AU2610957A AU211953B2 AU 211953 B2 AU211953 B2 AU 211953B2 AU 26109/57 A AU26109/57 A AU 26109/57A AU 2610957 A AU2610957 A AU 2610957A AU 211953 B2 AU211953 B2 AU 211953B2
Authority
AU
Australia
Prior art keywords
improvement
rock drill
drill rigs
mobile rock
mobile
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
AU26109/57A
Other versions
AU2610957A (en
Inventor
Robert Barton and John Clerk Curtis Douglas
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.)
Joy Manufacturing Co
Original Assignee
Joy Manufacturing Co
Filing date
Publication date
Application filed by Joy Manufacturing Co filed Critical Joy Manufacturing Co
Application granted granted Critical
Publication of AU2610957A publication Critical patent/AU2610957A/en
Publication of AU211953B2 publication Critical patent/AU211953B2/en
Expired legal-status Critical Current

Links

AU26109/57A 1957-03-12 Improvement in mobile rock drill rigs Expired AU211953B2 (en)

Publications (2)

Publication Number Publication Date
AU2610957A AU2610957A (en) 1957-09-12
AU211953B2 true AU211953B2 (en) 1957-09-12

Family

ID=

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