4. Powder metallurgy processes
  5. Powder metallurgy processes with heating or sintering
  6. Metal and nonmetal in final product

David R. Hall

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Accessible downhole power assembly

Boring or penetrating the earth – With tool shaft detail
Reexamination Certificate

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Actuated electric connection

Electrical connectors – Having retainer or passageway for fluent material – Fluent material transmission line
Reexamination Certificate

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Agitator in a sewer system

Liquid purification or separation – Structural installation – Geographic
Reexamination Certificate

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Annular wire harness for use in drill pipe

Electrical transmission or interconnection systems – Anti-induction or coupling to other systems – Inducing current control
Reexamination Certificate

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Anvil for a HPHT apparatus

Coating processes – Electrical product produced – Electron emissive or suppressive
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Profile ID: LFUS-PAI-P-47844

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