NL74357C - - Google Patents

Info

Publication number
NL74357C
NL74357C NL143347A NL143347A NL74357C NL 74357 C NL74357 C NL 74357C NL 143347 A NL143347 A NL 143347A NL 143347 A NL143347 A NL 143347A NL 74357 C NL74357 C NL 74357C
Authority
NL
Netherlands
Application number
NL143347A
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 NL143347A priority Critical patent/NL74357C/xx
Application granted granted Critical
Publication of NL74357C publication Critical patent/NL74357C/xx

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/08—Blasting cartridges, i.e. case and explosive with cavities in the charge, e.g. hollow-charge blasting cartridges
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/116—Gun or shaped-charge perforators
    • E21B43/117—Shaped-charge perforators

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
NL143347A 1948-11-17 1948-11-17 NL74357C (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL143347A NL74357C (ja) 1948-11-17 1948-11-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL143347A NL74357C (ja) 1948-11-17 1948-11-17

Publications (1)

Publication Number Publication Date
NL74357C true NL74357C (ja) 1954-03-10

Family

ID=19757641

Family Applications (1)

Application Number Title Priority Date Filing Date
NL143347A NL74357C (ja) 1948-11-17 1948-11-17

Country Status (1)

Country Link
NL (1) NL74357C (ja)

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