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Hydrogen generation apparatus for an underwater vehicle

Ships – Submersible device – Having propulsion unit
Reexamination Certificate

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Hydrogen hydride keel

Ships – Keels
Patent

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Hydrogyro ship stabilizer and method for stabilizing a vessel

Ships – Ballasting – Antirolling
Reexamination Certificate

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Hydrophilic polymer coating for underwater structures

Ships – Building – Antifriction surfaces
Patent

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Hydroplane boat

Ships – Hull or hull adjunct employing fluid dynamic forces to... – Stepped hull
Patent

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Hydroplanes

Ships – Hull or hull adjunct employing fluid dynamic forces to... – Having airfoil
Patent

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Hydroplaning boat accessory

Ships – Hull or hull adjunct employing fluid dynamic forces to... – Having hydrofoil
Patent

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Hydroplaning hulls and vessels employing the same

Ships – Building – Observation boats
Patent

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Hydroplaning hydrofoil/airfoil structures and amphibious and aqu

Ships – Hull or hull adjunct employing fluid dynamic forces to... – Having hydrofoil
Patent

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Hydroplaning unmanned surface vehicle

Ships – Towing or pushing – Having means responsive to excess strain
Statutory Invention Registration

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Hydroplaning wing sailing craft

Ships – Watercraft with means used in providing sailpower – Having specifically defined hull shape
Patent

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Hydropulse underwater propulsion system

Ships – Torpedoes
Patent

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Hydrostatic pressure sensors

Ships – Life craft handling device – apparatus – or implement – Means for automatic launch upon sinking of ship
Patent

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Hydrostatic release with a composite plunger assembly

Ships – Life craft handling device – apparatus – or implement – Means for automatic launch upon sinking of ship
Patent

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