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AU245574B2 - Improvements in apparatus for drilling in earth covered rock - Google Patents

Improvements in apparatus for drilling in earth covered rock

Info

Publication number
AU245574B2
AU245574B2 AU3101/61A AU310161A AU245574B2 AU 245574 B2 AU245574 B2 AU 245574B2 AU 3101/61 A AU3101/61 A AU 3101/61A AU 310161 A AU310161 A AU 310161A AU 245574 B2 AU245574 B2 AU 245574B2
Authority
AU
Australia
Prior art keywords
drilling
earth covered
covered rock
rock
earth
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
AU3101/61A
Other versions
AU310161A (en
Inventor
John Anders Hjalsten and Carl Oloff Lindgren Bengt Rune Genberg
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.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
Filing date
Publication date
Application filed by Atlas Copco AB filed Critical Atlas Copco AB
Application granted granted Critical
Publication of AU245574B2 publication Critical patent/AU245574B2/en
Publication of AU310161A publication Critical patent/AU310161A/en
Expired legal-status Critical Current

Links

AU3101/61A 1961-03-29 Improvements in apparatus for drilling in earth covered rock Expired AU245574B2 (en)

Publications (2)

Publication Number Publication Date
AU245574B2 true AU245574B2 (en) 1963-06-14
AU310161A AU310161A (en) 1963-06-14

Family

ID=

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