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Rammed air cushion hydroplane

Ships – Building – Antifriction surfaces
Patent

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Ramp for slidably supporting a pipeline to be laid on a submerge

Ships – Building – Canal and ferry boats
Patent

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Rapid attachment boat docking system

Ships – Building – Antifriction surfaces
Patent

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Rebuilt double hull tanker and method of rebuilding an...

Ships – Building – Freighters
Reexamination Certificate

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Rebuilt double hull tanker and method of rebuilding an...

Ships – Building – Freighters
Reexamination Certificate

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Rebuilt double hull vessel and method of rebuilding a single...

Ships – Building
Reexamination Certificate

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Rebuilt double hull vessel and method of rebuilding a single...

Ships – Building
Reexamination Certificate

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Recessed bottom tanker

Ships – Building – Freighters
Patent

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Recesses on a surface

Ships – Building – Antifriction surfaces
Reexamination Certificate

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Recovery buoy

Ships – Building – Canal and ferry boats
Patent

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Reinforced powerboat construction

Ships – Building – Bracing and staying
Reexamination Certificate

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Release mechanism for underwater device, such as seismograph

Ships – Building – Canal and ferry boats
Patent

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Remote controlled scuttling buoy

Ships – Building – Canal and ferry boats
Patent

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Remote steering control for electric outboard motors

Ships – Building – Canal and ferry boats
Patent

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Remote unmanned work system (RUWS) electromechanical cable syste

Ships – Building – Canal and ferry boats
Patent

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Remotely steered toy boat

Ships – Building – Canal and ferry boats
Patent

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Removable lower deck for watercraft

Ships – Building – Decks
Patent

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Rescue equipment

Ships – Building – Canal and ferry boats
Patent

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Retrofittable monolithic box beam composite hull system

Ships – Building – Freighters
Patent

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Rideable wave propelled watersport board

Ships – Building – Freighters
Reexamination Certificate

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