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Class Information
Number: 440/61
Name: Marine propulsion >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
440/1	Means to control the supply of energy responsive to a sensed condition	369
440/101	Oar or paddle	98
440/11	Powered from land vehicle supported by vessel	23
440/111	Inboard engine mount	84
440/113	Miscellaneous	126
440/12.5	Self-propelled vehicle having land and water propulsion means (e.g., amphibious vehicle)	66
440/13	Oscillating propelling means	38
440/2	With indicator	130
440/21	Operator powered drive for propelling means	77
440/3	Diverse engine means	47
440/33	Towing	14
440/37	Air propelled boat	48
440/38	Jet drive	425
440/4	Plural engines with single propelling means	19
440/48	Helical screw	19
440/49	Screw propeller	102
440/5	Hydraulic fluid drive for propelling means	44
440/6	Electric drive for propelling means	383
440/8	Wind driven motors	30
440/84	Engine, motor, or transmission control means	197
440/88R	Means for accomodating or moving engine fluids	476
440/9	Wave powered propelling means	23
440/90	Paddle wheel	59
440/94	Upright remaining orbiting paddles	3
440/95	Flexible endless propelling means	12
440/98	Buoyant propelling means	12