SE346355B - - Google Patents

Info

Publication number
SE346355B
SE346355B SE1310270A SE1310270A SE346355B SE 346355 B SE346355 B SE 346355B SE 1310270 A SE1310270 A SE 1310270A SE 1310270 A SE1310270 A SE 1310270A SE 346355 B SE346355 B SE 346355B
Authority
SE
Sweden
Application number
SE1310270A
Inventor
A Svanstroem
Original Assignee
Fagersta Bruks 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
Application filed by Fagersta Bruks Ab filed Critical Fagersta Bruks Ab
Priority to SE1310270A priority Critical patent/SE346355B/xx
Priority to DE19712144295 priority patent/DE2144295A1/de
Priority to AT824971A priority patent/AT313832B/de
Publication of SE346355B publication Critical patent/SE346355B/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
SE1310270A 1970-09-25 1970-09-25 SE346355B (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE1310270A SE346355B (de) 1970-09-25 1970-09-25
DE19712144295 DE2144295A1 (de) 1970-09-25 1971-09-03 Bohreinrichtung zum Bohren im Erdboden und/oder Gestein
AT824971A AT313832B (de) 1970-09-25 1971-09-23 Bohreinrichtung zum Bohren im Erdboden und/oder Gestein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1310270A SE346355B (de) 1970-09-25 1970-09-25

Publications (1)

Publication Number Publication Date
SE346355B true SE346355B (de) 1972-07-03

Family

ID=20296833

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1310270A SE346355B (de) 1970-09-25 1970-09-25

Country Status (3)

Country Link
AT (1) AT313832B (de)
DE (1) DE2144295A1 (de)
SE (1) SE346355B (de)

Also Published As

Publication number Publication date
AT313832B (de) 1974-03-11
DE2144295A1 (de) 1972-03-30

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