4. Fluid reaction surfaces (i.e., impellers)
  5. Specific blade structure
  6. Radial flow devices

James Bernard Fehlberg

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Airfoil shape for a turbine bucket

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Concave surface
Reexamination Certificate

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Airfoil shape for a turbine bucket

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices
Reexamination Certificate

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Airfoil shape for a turbine nozzle

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Plural distributing means immediately upstream of runner
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2756213

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