DE254570C - - Google Patents

Info

Publication number
DE254570C
DE254570C DENDAT254570D DE254570DA DE254570C DE 254570 C DE254570 C DE 254570C DE NDAT254570 D DENDAT254570 D DE NDAT254570D DE 254570D A DE254570D A DE 254570DA DE 254570 C DE254570 C DE 254570C
Authority
DE
Germany
Prior art keywords
spindle
lifting rod
lifting
bear
rods
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
DENDAT254570D
Other languages
German (de)
English (en)
Publication of DE254570C publication Critical patent/DE254570C/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
    • E21B11/00—Other drilling tools
    • E21B11/02—Boring rams

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)
DENDAT254570D Active DE254570C (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
DE254570C true DE254570C (enrdf_load_html_response)

Family

ID=512749

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT254570D Active DE254570C (enrdf_load_html_response)

Country Status (1)

Country Link
DE (1) DE254570C (enrdf_load_html_response)

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