AU453493B2 - Rotary-percussion drill apparatus - Google Patents

Rotary-percussion drill apparatus

Info

Publication number
AU453493B2
AU453493B2 AU51231/69A AU5123169A AU453493B2 AU 453493 B2 AU453493 B2 AU 453493B2 AU 51231/69 A AU51231/69 A AU 51231/69A AU 5123169 A AU5123169 A AU 5123169A AU 453493 B2 AU453493 B2 AU 453493B2
Authority
AU
Australia
Prior art keywords
rotary
percussion drill
drill apparatus
percussion
drill
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
AU51231/69A
Other versions
AU5123169A (en
Inventor
Walter Becker Floyd
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.)
Becker Drilling Alberta Ltd
Original Assignee
Becker Drilling Alberta Ltd
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 Becker Drilling Alberta Ltd filed Critical Becker Drilling Alberta Ltd
Application granted granted Critical
Publication of AU453493B2 publication Critical patent/AU453493B2/en
Publication of AU5123169A publication Critical patent/AU5123169A/en
Expired legal-status Critical Current

Links

AU51231/69A 1968-05-03 1969-02-28 Rotary-percussion drill apparatus Expired AU453493B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CACA019,053 1968-05-03

Publications (2)

Publication Number Publication Date
AU453493B2 true AU453493B2 (en) 1970-09-03
AU5123169A AU5123169A (en) 1970-09-03

Family

ID=

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