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特許 権利維持 A lightweight control bar that lets the rider of a towed sport (kiteboarding, wakeboarding, water skiing, snowboarding, skateboarding, etc.) directly pilot the traction drone that pulls them — steering and speed control built into the bar itself, removing the need for a separate pilot. Can be used tethered directly to the tow line ("tow bar" mode) or mounted on a rigid frame ("palonier" mode). Granted patent, offered for licensing or sale.