AU483974B2 - Improved hydraulically powered percussion drill - Google Patents

Improved hydraulically powered percussion drill

Info

Publication number
AU483974B2
AU483974B2 AU73159/74A AU7315974A AU483974B2 AU 483974 B2 AU483974 B2 AU 483974B2 AU 73159/74 A AU73159/74 A AU 73159/74A AU 7315974 A AU7315974 A AU 7315974A AU 483974 B2 AU483974 B2 AU 483974B2
Authority
AU
Australia
Prior art keywords
hydraulically powered
percussion drill
improved hydraulically
powered percussion
improved
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
AU73159/74A
Other versions
AU7315974A (en
Inventor
Edward Feucht Jacob
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
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
Priority claimed from US05/410,939 external-priority patent/US3955478A/en
Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc
Application granted granted Critical
Publication of AU483974B2 publication Critical patent/AU483974B2/en
Publication of AU7315974A publication Critical patent/AU7315974A/en
Expired legal-status Critical Current

Links

AU73159/74A 1973-10-29 1974-09-10 Improved hydraulically powered percussion drill Expired AU483974B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
USUS410939 1973-10-29
US05/410,939 US3955478A (en) 1973-10-29 1973-10-29 Hydraulically powered percussion drill

Publications (2)

Publication Number Publication Date
AU483974B2 true AU483974B2 (en) 1976-03-18
AU7315974A AU7315974A (en) 1976-03-18

Family

ID=

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