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AU486707B2 - Rotary percussion earth boring bit - Google Patents
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AU486707B2 - Rotary percussion earth boring bit - Google Patents

Rotary percussion earth boring bit

Info

Publication number
AU486707B2
AU486707B2 AU81057/75A AU8105775A AU486707B2 AU 486707 B2 AU486707 B2 AU 486707B2 AU 81057/75 A AU81057/75 A AU 81057/75A AU 8105775 A AU8105775 A AU 8105775A AU 486707 B2 AU486707 B2 AU 486707B2
Authority
AU
Australia
Prior art keywords
earth boring
boring bit
rotary percussion
percussion earth
rotary
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
AU81057/75A
Other versions
AU8105775A (en
Inventor
Deneal Stinson Leon
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.)
Hughes Tool Co
Original Assignee
Hughes Tool 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
Priority claimed from US05/484,837 external-priority patent/US3941197A/en
Application filed by Hughes Tool Co filed Critical Hughes Tool Co
Application granted granted Critical
Publication of AU8105775A publication Critical patent/AU8105775A/en
Publication of AU486707B2 publication Critical patent/AU486707B2/en
Expired legal-status Critical Current

Links

AU81057/75A 1974-07-01 1975-05-12 Rotary percussion earth boring bit Expired AU486707B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/484,837 US3941197A (en) 1974-07-01 1974-07-01 Rotary percussion earth boring bit
USUS484,837 1974-07-01

Publications (2)

Publication Number Publication Date
AU8105775A AU8105775A (en) 1976-11-18
AU486707B2 true AU486707B2 (en) 1976-11-18

Family

ID=

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