70513 ⎘
Superstructures, deckhouses, wheelhouses or the like ; Arrangements or adaptations of masts or spars, e.g. bowsprits; Masts characterized by mast configuration or construction with means for varying mast position or orientation with respect to the hull Inclinable masts with passive righting means, e.g. counterbalancing means
Wind-propelled boat having parallel self-righting paired masts for wind-assisted propulsion for boats
#2Wind-propelled boat having parallel self-righting paired masts for wind-assisted propulsion for boats
#3Foldable mast assembly for a sailing vessel