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)

Applications Claiming Priority (1)

Publications (1)

Family

ID=19752226

Family Applications (2)

Family Applications Before (1)

Country Status (1)

• 0
  • NL NL24947D patent/NL24947C/xx active
  • NL NL22121D patent/NL22121C/xx active

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