NO743622L - - Google Patents

Info

Publication number
NO743622L
NO743622L NO743622A NO743622A NO743622L NO 743622 L NO743622 L NO 743622L NO 743622 A NO743622 A NO 743622A NO 743622 A NO743622 A NO 743622A NO 743622 L NO743622 L NO 743622L
Authority
NO
Norway
Prior art keywords
drill bit
feed pressure
rock
accordance
drilling
Prior art date
Application number
NO743622A
Other languages
English (en)
Norwegian (no)
Inventor
R Nylund
A Holmala
Original Assignee
Tampella Oy Ab
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 FI3133/73A external-priority patent/FI313373A7/fi
Priority claimed from FI2869/74A external-priority patent/FI286974A7/fi
Application filed by Tampella Oy Ab filed Critical Tampella Oy Ab
Priority to NO743622A priority Critical patent/NO743622L/no
Publication of NO743622L publication Critical patent/NO743622L/no

Links

Landscapes

  • Earth Drilling (AREA)
NO743622A 1973-10-09 1974-10-08 NO743622L (cs)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO743622A NO743622L (cs) 1973-10-09 1974-10-08

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI3133/73A FI313373A7 (cs) 1973-10-09 1973-10-09
FI2869/74A FI286974A7 (cs) 1974-10-01 1974-10-01
NO743622A NO743622L (cs) 1973-10-09 1974-10-08

Publications (1)

Publication Number Publication Date
NO743622L true NO743622L (cs) 1975-05-05

Family

ID=27240916

Family Applications (1)

Application Number Title Priority Date Filing Date
NO743622A NO743622L (cs) 1973-10-09 1974-10-08

Country Status (1)

Country Link
NO (1) NO743622L (cs)

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