71565 ⎘
Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels Arrangements of two or more propellers, or the like on single outboard propulsion units
Sub-classes:SYSTEM FOR CONTROLLING MARINE CRAFT WITH STEERABLE PROPELLERS
#2SYSTEM FOR CONTROLLING MARINE CRAFT WITH STEERABLE PROPELLERS
#3DRIVE FOR A BOAT, DRIVE SYSTEM FOR A BOAT, BOAT
#4KAYAK SMART PROPULSION SYSTEM
#5Propulsion system for a vehicle
#6Outboard propulsion system for vessels
#7System for controlling marine craft with steerable propellers
#8Marine vessel propulsion structure and marine vessel driving apparatus
#9Power transmission device
#10Dual propeller surface drive propulsion system for boats