DE2014870A1 - - Google Patents

Info

Publication number
DE2014870A1
DE2014870A1 DE19702014870 DE2014870A DE2014870A1 DE 2014870 A1 DE2014870 A1 DE 2014870A1 DE 19702014870 DE19702014870 DE 19702014870 DE 2014870 A DE2014870 A DE 2014870A DE 2014870 A1 DE2014870 A1 DE 2014870A1
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Withdrawn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
DE19702014870
Other languages
German (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
Priority to DE19702014870 priority Critical patent/DE2014870A1/de
Publication of DE2014870A1 publication Critical patent/DE2014870A1/de
Priority to FR7105963A priority patent/FR2083938A5/fr
Priority to DK83471AA priority patent/DK124183B/da
Priority to US119783A priority patent/US3703214A/en
Priority to NL7102712A priority patent/NL7102712A/xx
Priority to CH294671A priority patent/CH517244A/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Withdrawn legal-status Critical Current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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure

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)
DE19702014870 1970-03-26 1970-03-26 Withdrawn DE2014870A1 (enrdf_load_stackoverflow)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE19702014870 DE2014870A1 (enrdf_load_stackoverflow) 1970-03-26 1970-03-26
FR7105963A FR2083938A5 (enrdf_load_stackoverflow) 1970-03-26 1971-02-22
DK83471AA DK124183B (da) 1970-03-26 1971-02-24 Stenbor med som transportsnegl udformet skaft.
US119783A US3703214A (en) 1970-03-26 1971-03-01 Rock drilling bit
NL7102712A NL7102712A (enrdf_load_stackoverflow) 1970-03-26 1971-03-01
CH294671A CH517244A (de) 1970-03-26 1971-03-01 Gesteinsbohrer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702014870 DE2014870A1 (enrdf_load_stackoverflow) 1970-03-26 1970-03-26

Publications (1)

Publication Number Publication Date
DE2014870A1 true DE2014870A1 (enrdf_load_stackoverflow) 1971-01-28

Family

ID=5766509

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702014870 Withdrawn DE2014870A1 (enrdf_load_stackoverflow) 1970-03-26 1970-03-26

Country Status (1)

Country Link
DE (1) DE2014870A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11820653B2 (en) 2013-03-14 2023-11-21 Thyssenkrupp Industrial Solutions Ag Method for oxidizing ammonia and system suitable therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11820653B2 (en) 2013-03-14 2023-11-21 Thyssenkrupp Industrial Solutions Ag Method for oxidizing ammonia and system suitable therefor

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Legal Events

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