4. Pipes and tubular conduits
  5. Repairing

Peter L. DeMarsh

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Apparatus for and a method of severing multiple casing strings u

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

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Method of plugging a heat exchanger tube and plug therefor

Pipes and tubular conduits – Repairing
Patent

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Underwater oxy-arc cutting system using a non-thermic cutting ro

Electric heating – Metal heating – Cutting or disintegrating
Patent

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Use of PDE 4-specific inhibitors to reduce the severity of a...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-411161

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