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AU452041B2 - Earth boring machine positioning system - Google Patents
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AU452041B2 - Earth boring machine positioning system - Google Patents

Earth boring machine positioning system

Info

Publication number
AU452041B2
AU452041B2 AU19819/70A AU1981970A AU452041B2 AU 452041 B2 AU452041 B2 AU 452041B2 AU 19819/70 A AU19819/70 A AU 19819/70A AU 1981970 A AU1981970 A AU 1981970A AU 452041 B2 AU452041 B2 AU 452041B2
Authority
AU
Australia
Prior art keywords
positioning system
boring machine
earth boring
machine positioning
earth
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
AU19819/70A
Other versions
AU1981970A (en
Inventor
W. YOUNG and ERNESTO. KUNKEL JAMES
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
Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc
Application granted granted Critical
Publication of AU452041B2 publication Critical patent/AU452041B2/en
Publication of AU1981970A publication Critical patent/AU1981970A/en
Expired legal-status Critical Current

Links

AU19819/70A 1969-09-30 1970-09-11 Earth boring machine positioning system Expired AU452041B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
USUS862,216 1969-09-30

Publications (2)

Publication Number Publication Date
AU452041B2 true AU452041B2 (en) 1972-03-16
AU1981970A AU1981970A (en) 1972-03-16

Family

ID=

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