DE137932C - - Google Patents

Info

Publication number
DE137932C
DE137932C DENDAT137932D DE137932DA DE137932C DE 137932 C DE137932 C DE 137932C DE NDAT137932 D DENDAT137932 D DE NDAT137932D DE 137932D A DE137932D A DE 137932DA DE 137932 C DE137932 C DE 137932C
Authority
DE
Germany
Prior art keywords
parts
pull rod
rod
clamping jaws
enable
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
DENDAT137932D
Other languages
German (de)
English (en)
Publication of DE137932C publication Critical patent/DE137932C/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)
DENDAT137932D Active DE137932C (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
DE137932C true DE137932C (enrdf_load_html_response)

Family

ID=405775

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT137932D Active DE137932C (enrdf_load_html_response)

Country Status (1)

Country Link
DE (1) DE137932C (enrdf_load_html_response)

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