4. Heat exchange
  5. Casing or tank enclosed conduit assembly
  6. Manifold formed by casing section and tube sheet of assembly

David Bland Pierce

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Bore plug and bore plugging method

Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent

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Facade plate, method of assembly, assembled heat exchanger and k

Heat exchange – Casing or tank enclosed conduit assembly – Manifold formed by casing section and tube sheet of assembly
Patent

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Tube finning machine and method and product

Metal working – Method of mechanical manufacture – Heat exchanger or boiler making
Patent

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Tube finning machine and method of use

Metal working – Method of mechanical manufacture – Heat exchanger or boiler making
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1467937

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