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Apparatus for forward facing boat rowing

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Apparatus for the propulsion of boats

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Bow facing rowing apparatus

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Bow facing rowing system

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Breakdown boat paddle with variable configuration

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Forward facing rowing mechanism

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Forward-facing rowing

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Forwards facing rowing apparatus with feathering of the oar blad

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Oar

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Propeller for marine propulsion drive

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Reverse boat oars

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Rowing apparatus

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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Rowing oar handle

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Reexamination Certificate

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Rowing oar system

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Reexamination Certificate

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Sculling oar

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Reexamination Certificate

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Watercraft with frontface oar system

Marine propulsion – Oar or paddle – Articulated sectional oar or paddle
Patent

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