4. Chemistry: analytical and immunological testing
  5. Lubricant, grease, mineral oil, hydrocarbon oil product, or...

Per Fotland

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Method for the measurement of precipitation of asphaltene in oil

Chemistry: analytical and immunological testing – Lubricant – grease – mineral oil – hydrocarbon oil product – or...
Patent

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Methods and apparatus for severing nested strings of tubulars

Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Reexamination Certificate

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Methods and apparatus for severing nested strings of tubulars

Wells – Above ground apparatus – With means facilitating connecting or disconnecting...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-579167

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