AU6081469A - Drilling apparatus for rotary drilling - Google Patents

Drilling apparatus for rotary drilling

Info

Publication number
AU6081469A
AU6081469A AU60814/69A AU6081469A AU6081469A AU 6081469 A AU6081469 A AU 6081469A AU 60814/69 A AU60814/69 A AU 60814/69A AU 6081469 A AU6081469 A AU 6081469A AU 6081469 A AU6081469 A AU 6081469A
Authority
AU
Australia
Prior art keywords
drilling
rotary
rotary drilling
drilling apparatus
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
AU60814/69A
Other versions
AU442948B2 (en
Inventor
Gunnar Johnson Nils
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Atlas Copco AB filed Critical Atlas Copco AB
Application granted granted Critical
Publication of AU6081469A publication Critical patent/AU6081469A/en
Publication of AU442948B2 publication Critical patent/AU442948B2/en
Expired legal-status Critical Current

Links

AU60814/69A 1968-10-04 1969-09-12 Drilling apparatus for rotary drilling Expired AU442948B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SESE13476/68 1968-12-04

Publications (2)

Publication Number Publication Date
AU6081469A true AU6081469A (en) 1971-03-18
AU442948B2 AU442948B2 (en) 1971-03-18

Family

ID=

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