4. Metal working
  5. Method of mechanical manufacture
  6. Impeller making

Douglas C. Hofer

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Exhaust system for a turbomachine

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Annular exit chamber outward of runner
Patent

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Method of making a row of mix-tuned turbomachine blades

Metal working – Method of mechanical manufacture – Impeller making
Patent

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Support structure for stream turbine bearing housing

Rotary kinetic fluid motors or pumps – Shaft bearing combined with or retained by arm or vane in...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-560584

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