71530 ⎘
Marine propulsion by muscle power
Sub-classes:Oscillating lever driven reversible motor
#2Vehicle for use in water, in particular into the sea
#3Twin hull foldout watercraft
#4Foot-propelled catamaran watercraft
#5Human powered watercraft with fin propulsion
#6Paddleboard and process
#7BOARD MOUNTABLE PADDLE RETAINING DEVICE
#8Watercraft for transportation and exercise
#9Aquatic equilibrium cycle
#10SPLIT-CONSTRUCTION WATERCRAFT
#11AQUATIC DEVICE
#12Internally mounted watercraft rowing fin system
#13PUSH POLE FOR A BOAT
#14Rescue Boat
#15Push pole for a boat
#16Self-propelled hydrofoil device with flexible steering assembly
#17AQUATIC DEVICE
#18Watercraft for transportation and exercise
#19MONITORING SPORTS AND SWIMMING
#20Wrist mounted paddle grip
#21Double-hulled rowboat
#22Self propelled hydrofoil device with leverage-based control of drive foil
#23Rowing- and sculling-boat electric-switch operation
#24Monitoring water sports performance
#25Method and apparatus for monitoring boat decelelation during rowing
#26Inflatable floating device
#27Method and apparatus of information systems for rowers
#28Collapsible watercraft
#29Craft for water sports