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Safety device for rendering a boat unsinkable

Ships – Building – Insubmergible vessels
Patent

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Safety device for sail yachts

Ships – Building – Canal and ferry boats
Patent

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Safety submarine spherical air chamber

Ships – Building – Canal and ferry boats
Patent

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Sail boards

Ships – Building – Canal and ferry boats
Patent

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Sailboat mast floatation device

Ships – Building – Insubmergible vessels
Patent

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Sailing vessel

Ships – Building – Cabins
Patent

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Sand and gravel dredges

Ships – Building – Canal and ferry boats
Patent

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Saucer boat

Ships – Building – Canal and ferry boats
Patent

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Scuba divers propulsion unit

Ships – Building – Canal and ferry boats
Patent

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Sea bulk transfer vessel

Ships – Building – Freighters
Reexamination Certificate

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Sea rescue chamber and methods of constructing and utilizing sam

Ships – Building – Canal and ferry boats
Patent

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Sea terminal

Ships – Building – Canal and ferry boats
Patent

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Sea terminal

Ships – Building – Canal and ferry boats
Patent

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Sea-shipping system having serial float ball-shaped vehicles wit

Ships – Building – Freighters
Patent

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Sealed thermally insulating vessel forming part of the supportin

Ships – Building – Freighters
Patent

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Sealed, thermally insulated tank incorporated into the...

Ships – Building – Freighters
Reexamination Certificate

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Secondary barrier construction for vessels carrying spherical lo

Ships – Building – Freighters
Patent

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Sectional boat structures

Ships – Building – Canal and ferry boats
Patent

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Sectioned ship

Ships – Building – Sectional
Reexamination Certificate

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Selected depth mooring system

Ships – Building – Canal and ferry boats
Patent

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