4. Marine propulsion
  5. Screw propeller
  6. Having means to control flow around propeller

Andy E. Theophanides

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Hydraulic power system for a boat

Marine propulsion – Hydraulic fluid drive for propelling means
Patent

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Nautical propulsion performance enhancer

Marine propulsion – Screw propeller – Having means to control flow around propeller
Patent

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Profile ID: LFUS-PAI-P-270111

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