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AU484513B2 - Drill shock absorber - Google Patents
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AU484513B2 - Drill shock absorber - Google Patents

Drill shock absorber

Info

Publication number
AU484513B2
AU484513B2 AU87801/75A AU8780175A AU484513B2 AU 484513 B2 AU484513 B2 AU 484513B2 AU 87801/75 A AU87801/75 A AU 87801/75A AU 8780175 A AU8780175 A AU 8780175A AU 484513 B2 AU484513 B2 AU 484513B2
Authority
AU
Australia
Prior art keywords
shock absorber
drill shock
drill
absorber
shock
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
AU87801/75A
Other versions
AU8780175A (en
Inventor
D. Nelmark Jack
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.)
Ruston-Bucyrus Ltd
Original Assignee
Ruston-Bucyrus Ltd
Filing date
Publication date
Priority claimed from US05/535,736 external-priority patent/US3947009A/en
Application filed by Ruston-Bucyrus Ltd filed Critical Ruston-Bucyrus Ltd
Application granted granted Critical
Publication of AU484513B2 publication Critical patent/AU484513B2/en
Publication of AU8780175A publication Critical patent/AU8780175A/en
Expired legal-status Critical Current

Links

AU87801/75A 1975-12-23 Drill shock absorber Expired AU484513B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/535,736 US3947009A (en) 1974-12-23 1974-12-23 Drill shock absorber

Publications (2)

Publication Number Publication Date
AU484513B2 true AU484513B2 (en) 1977-07-14
AU8780175A AU8780175A (en) 1977-07-14

Family

ID=

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