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

Hans Langenberg

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Propeller drive for watercraft

Marine propulsion – Screw propeller – Propeller arrangement
Patent

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Ship's hull for small vessels and high speeds

Ships – Displacement-type hull
Patent

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Water craft with guide fins

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

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Water craft with guide fins

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

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Profile ID: LFUS-PAI-P-538248

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