4. Ships
  5. Steering mechanism
  6. Rudders

Fred Petersen

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Method for introducing oxygen into water and an apparatus for im

Liquid purification or separation – Processes – Chemical treatment
Patent

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Method for producing a thrust in manoeuvering engines for a wate

Marine propulsion – Jet drive – Having means to increase fluid drive means efficiency
Patent

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Rudder rotor for watercraft and floating equipment

Ships – Steering mechanism – Rudders
Patent

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Profile ID: LFUS-PAI-P-784392

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