4. Boring or penetrating the earth
  5. With means movable relative to tool or shaft to control...

Mark William Craig

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Erosion resistant downhole mud diverter tool

Boring or penetrating the earth – With means movable relative to tool or shaft to control...
Patent

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Regeneration system having integral purge and ignition device

Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-620666

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