NO850587L - Dreibar kutter for jordboringsutstyr - Google Patents

Dreibar kutter for jordboringsutstyr

Info

Publication number
NO850587L
NO850587L NO850587A NO850587A NO850587L NO 850587 L NO850587 L NO 850587L NO 850587 A NO850587 A NO 850587A NO 850587 A NO850587 A NO 850587A NO 850587 L NO850587 L NO 850587L
Authority
NO
Norway
Prior art keywords
pivotable
cuts
drilling equipment
earth drilling
earth
Prior art date
Application number
NO850587A
Other languages
English (en)
Other versions
NO165650C (no
NO165650B (no
Inventor
Rudolf Carl Otto Pessier
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 US06/043,533 external-priority patent/US4316515A/en
Publication of NO850587L publication Critical patent/NO850587L/no
Application filed by Hughes Tool Co filed Critical Hughes Tool Co
Priority to NO850587A priority Critical patent/NO165650C/no
Publication of NO165650B publication Critical patent/NO165650B/no
Publication of NO165650C publication Critical patent/NO165650C/no

Links

NO850587A 1979-05-29 1985-02-15 Skjaerevalse for borkrone. NO165650C (no)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO850587A NO165650C (no) 1979-05-29 1985-02-15 Skjaerevalse for borkrone.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/043,533 US4316515A (en) 1979-05-29 1979-05-29 Shaft drill bit with improved cutter bearing and seal arrangement and cutter insert arrangement
NO801095A NO154586C (no) 1979-05-29 1980-04-16 Skjaerevalse for en rotasjonsborkrone.
NO850587A NO165650C (no) 1979-05-29 1985-02-15 Skjaerevalse for borkrone.

Publications (3)

Publication Number Publication Date
NO850587L true NO850587L (no) 1980-12-01
NO165650B NO165650B (no) 1990-12-03
NO165650C NO165650C (no) 1991-03-13

Family

ID=27352776

Family Applications (1)

Application Number Title Priority Date Filing Date
NO850587A NO165650C (no) 1979-05-29 1985-02-15 Skjaerevalse for borkrone.

Country Status (1)

Country Link
NO (1) NO165650C (no)

Also Published As

Publication number Publication date
NO165650C (no) 1991-03-13
NO165650B (no) 1990-12-03

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