4. Marine propulsion
  5. Jet drive

Richard Gwyn Davies

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Hydraulic jet propulsion apparatus for boats

Marine propulsion – Jet drive – Having means to increase fluid drive means efficiency
Reexamination Certificate

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Water jet propulsion unit for use in water borne craft

Marine propulsion – Jet drive
Reexamination Certificate

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Water jet propulsion unit for use in water borne craft

Marine propulsion – Jet drive
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2146080

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