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US2014306422A1
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Personal vehicle frame and method of assembly
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Line derailleur
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Low Profile Derailleur For Chain Driven Personal Vehicle
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Scooter having a variable speed cam drive system
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Reward System And Decorative Bike Frame Insert
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Dual drive sprocket pedal bike
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Bicycle frame
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US2014265214A1
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Dual drive system for a non-motorized vehicle
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Non-motorized scooter
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Derailleur
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US2014265212A1
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Lever drive system for a scooter
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US2014265215A1
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Drive system with contoured cavity
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Four bar drive link system simulator
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Pedal-drive system for manually propelling multi-wheeled cycles
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AU2010289494A1
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Improved scooter and pedal drive assembly
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