4. Marine propulsion
  5. Jet drive

Roland Brachet

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Apparatus for measuring the density of a body

Measuring and testing – Specific gravity or density of liquid or solid – With weighing feature
Patent

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Device for indicating optimum sail position

Measuring and testing – Navigation – Take-off and landing monitors
Patent

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Method and apparatus for creating the illusion of moving images

Optics: motion pictures – Individual picture plate type – Traveling observer
Patent

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Propulsion device and a method of propelling a nautical vessel

Marine propulsion – Jet drive
Patent

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Profile ID: LFUS-PAI-P-209003

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