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AU252545B2 - Improvements in or relating to percussion drilling apparatus - Google Patents
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AU252545B2 - Improvements in or relating to percussion drilling apparatus - Google Patents

Improvements in or relating to percussion drilling apparatus

Info

Publication number
AU252545B2
AU252545B2 AU9167/61A AU916761A AU252545B2 AU 252545 B2 AU252545 B2 AU 252545B2 AU 9167/61 A AU9167/61 A AU 9167/61A AU 916761 A AU916761 A AU 916761A AU 252545 B2 AU252545 B2 AU 252545B2
Authority
AU
Australia
Prior art keywords
relating
drilling apparatus
percussion drilling
percussion
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
AU9167/61A
Other versions
AU916761A (en
Inventor
Louis Collier and Melton Larue Fly Samuel
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.)
Mission Manufacturing Co
Original Assignee
Mission Manufacturing Co
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 Mission Manufacturing Co filed Critical Mission Manufacturing Co
Application granted granted Critical
Publication of AU252545B2 publication Critical patent/AU252545B2/en
Publication of AU916761A publication Critical patent/AU916761A/en
Expired legal-status Critical Current

Links

AU9167/61A 1960-09-19 1961-09-13 Improvements in or relating to percussion drilling apparatus Expired AU252545B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
USUS56,956 1960-09-19
USUS61,236 1960-10-07
USUS73,613 1960-12-05

Publications (2)

Publication Number Publication Date
AU252545B2 true AU252545B2 (en) 1963-05-02
AU916761A AU916761A (en) 1963-05-02

Family

ID=

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