DE222233C - - Google Patents

Info

Publication number
DE222233C
DE222233C DENDAT222233D DE222233DA DE222233C DE 222233 C DE222233 C DE 222233C DE NDAT222233 D DENDAT222233 D DE NDAT222233D DE 222233D A DE222233D A DE 222233DA DE 222233 C DE222233 C DE 222233C
Authority
DE
Germany
Prior art keywords
expansion body
pipe
linkage
rod
catching
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DENDAT222233D
Other languages
German (de)
English (en)
Publication of DE222233C publication Critical patent/DE222233C/de
Active legal-status Critical Current

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)
  • Earth Drilling (AREA)
DENDAT222233D Active DE222233C (cg-RX-API-DMAC10.html)

Publications (1)

Publication Number Publication Date
DE222233C true DE222233C (cg-RX-API-DMAC10.html)

Family

ID=483143

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT222233D Active DE222233C (cg-RX-API-DMAC10.html)

Country Status (1)

Country Link
DE (1) DE222233C (cg-RX-API-DMAC10.html)

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