4. Marine propulsion
  5. Screw propeller
  6. Propulsion unit casing

Eric Herrera

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Outboard engine with acoustic seals installed in motor...

Marine propulsion – Screw propeller – Propulsion unit casing
Reexamination Certificate

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Outboard engine with resonance-avoiding exhaust housing

Marine propulsion – Means for accomodating or moving engine fluids – Means for handling exhaust gas
Reexamination Certificate

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Tuned vibration absorber

Internal-combustion engines – Frame construction – Horizontal cylinder
Reexamination Certificate

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Vibro-acoustic treatment for engine noise suppression

Marine propulsion – Screw propeller – Propulsion unit casing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2471772

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