DE1558958A1 - - Google Patents

Info

Publication number
DE1558958A1
DE1558958A1 DE19661558958 DE1558958A DE1558958A1 DE 1558958 A1 DE1558958 A1 DE 1558958A1 DE 19661558958 DE19661558958 DE 19661558958 DE 1558958 A DE1558958 A DE 1558958A DE 1558958 A1 DE1558958 A1 DE 1558958A1
Authority
DE
Germany
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.)
Withdrawn
Application number
DE19661558958
Other versions
DE1558958B2 (de
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of DE1558958A1 publication Critical patent/DE1558958A1/de
Publication of DE1558958B2 publication Critical patent/DE1558958B2/de
Withdrawn legal-status Critical Current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
    • E21B10/00—Drill bits
    • E21B10/02—Core bits

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)
DE19661558958 1966-02-02 1966-02-02 Bohrkrone fuer ein schlagend oder stossend arbeitendes Kernbohrgeraet Withdrawn DE1558958B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0093917 1966-02-02

Publications (2)

Publication Number Publication Date
DE1558958A1 true DE1558958A1 (de) 1970-08-27
DE1558958B2 DE1558958B2 (de) 1970-08-27

Family

ID=6987236

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19661558958 Withdrawn DE1558958B2 (de) 1966-02-02 1966-02-02 Bohrkrone fuer ein schlagend oder stossend arbeitendes Kernbohrgeraet

Country Status (1)

Country Link
DE (1) DE1558958B2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3933867C2 (de) * 1989-10-11 1995-08-17 Bauer Spezialtiefbau Bohrkrone mit umfangsverteilt angeordneten Zähnen für Bohrrohre

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1213652A (en) * 1916-10-13 1917-01-23 John Waidele Tubular drill.
US1720700A (en) * 1924-08-19 1929-07-16 Doheny Stone Drill Co Core drill
US2070001A (en) * 1935-03-04 1937-02-09 Leonard S Copelin Rotary core bit
GB739960A (en) * 1954-03-18 1955-11-02 Laurence Clive Curtis Improvements in or relating to core samplers

Also Published As

Publication number Publication date
DE1558958B2 (de) 1970-08-27

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee