NL22121C - - Google Patents

Info

Publication number
NL22121C
NL22121C NL22121DA NL22121C NL 22121 C NL22121 C NL 22121C NL 22121D A NL22121D A NL 22121DA NL 22121 C NL22121 C NL 22121C
Authority
NL
Netherlands
Application number
Publication date
Application granted granted Critical
Publication of NL22121C publication Critical patent/NL22121C/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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/12—Grappling tools, e.g. tongs or grabs
    • E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
NL22121D NL22121C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL24947T

Publications (1)

Publication Number Publication Date
NL22121C true NL22121C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1930-01-15

Family

ID=19752226

Family Applications (2)

Application Number Title Priority Date Filing Date
NL24947D NL24947C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL22121D NL22121C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL24947D NL24947C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
NL (2) NL22121C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
NL24947C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1931-03-16

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