US PATENT SUBCLASS 440 / 81-- .~.~.~ On single shaft

US PATENT SUBCLASS 440 / 81
.~.~.~ On single shaft

Current as of: June, 1999
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440 /	HD	MARINE PROPULSION

49	DF	SCREW PROPELLER {12}
79	DF	.~ Propeller arrangement {2}
80	DF	.~.~ Tandem {1}
81		.~.~.~ On single shaft

DEFINITION

Classification: 440/81

On single shaft:

(under subclass 80) Device wherein the propellers are arranged on the same propeller shaft.