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- Google Patents
AU484513B2 - Drill shock absorber
- Google Patents
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.)
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 US05/535,736external-prioritypatent/US3947009A/en
Application filed by Ruston-Bucyrus LtdfiledCriticalRuston-Bucyrus Ltd
Application grantedgrantedCritical
Publication of AU484513B2publicationCriticalpatent/AU484513B2/en
Publication of AU8780175ApublicationCriticalpatent/AU8780175A/en