Oars; sculls; screw propellers for ships; air cushion vehicles; screw-propellers; screw-propellers for boats; portholes; boats; ships; ships' hulls; fenders for ships; boat hooks; ferry boats; pontoon boats; spars for ships; inclined ways for boats; water vehicles, namely, inflatable boats; rowlocks; disengaging gear for boats; steering gears for ships; launches; timbers frames for ships; yachts