4. Marine propulsion
  5. Screw propeller
  6. With vibration dampening

William D. Dunham

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Adjustable throttle linkage for outboard motors

Internal-combustion engines – Engine speed regulator – Charge volume varying
Patent

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Four-cycle marine engine

Internal-combustion engines – Four-cycle – Rotating valve
Patent

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Four-cycle marine engine

Internal-combustion engines – Multiple cylinder – Cylinders radiating
Patent

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Latch mechanism for outboard motor cowl assembly

Marine propulsion – Screw propeller – Propulsion unit casing
Patent

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Marine propulsion device cowl assembly

Internal-combustion engines – Frame construction – Horizontal cylinder
Patent

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Profile ID: LFUS-PAI-P-378696

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