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Pedal-powered kayak

Marine propulsion – Operator powered drive for propelling means – Rotary cranking arm
Patent

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Personal watercraft

Marine propulsion – Operator powered drive for propelling means – Rotary cranking arm
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Personalized watercraft

Marine propulsion – Operator powered drive for propelling means – Rotary cranking arm
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Personalized watercraft

Marine propulsion – Operator powered drive for propelling means – Rotary cranking arm
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Pontoon water bike

Marine propulsion – Operator powered drive for propelling means – Rotary cranking arm
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Portable apparatus for using bicycles as a type of watercraft

Marine propulsion – Operator powered drive for propelling means – Rotary cranking arm
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Portable canoe propulsion system

Marine propulsion – Operator powered drive for propelling means – Rotary cranking arm
Reexamination Certificate

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Portable pedal-operated paddlewheel boat

Marine propulsion – Operator powered drive for propelling means – Rotary cranking arm
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Propeller drive and steering mechanism for small craft

Marine propulsion – Operator powered drive for propelling means – Rotary cranking arm
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Propeller driven surfboard

Marine propulsion – Operator powered drive for propelling means – Rotary cranking arm
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