B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63H—MARINE PROPULSION OR STEERING
B63H16/00—Marine propulsion by muscle power
B63H16/08—Other apparatus for converting muscle power into propulsive effort
B63H16/12—Other apparatus for converting muscle power into propulsive effort using hand levers, cranks, pedals, or the like, e.g. water cycles, boats propelled by boat-mounted pedal cycles
B63H16/14—Other apparatus for converting muscle power into propulsive effort using hand levers, cranks, pedals, or the like, e.g. water cycles, boats propelled by boat-mounted pedal cycles for propelled drive