12 apparatus for locomotion by water and water vehicles, namely, barges, single rider recreational jet boats, canoes, and kayaks; boats, yacht, ships, launches, steering gears for ships, ships' hulls, disengaging gear for boats, rudders, portholes, screw propellers, oars, boat hooks, skulls, stern oars, cleats (nautical), davits for boat pontoons, inclined waves for boats