US PATENT SUBCLASS 416 / 173
.~ Manual powered means

Current as of: June, 1999
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416 /   HD   FLUID REACTION SURFACES (I.E., IMPELLERS)

170 R  DF  SPECIFIC DRIVE OR TRANSMISSION MEANS {4}
173.~ Manual powered means

DEFINITION

Classification: 416/173

(under subclass 170) Apparatus wherein the impeller is operated by a motion transmitting means which is actuated by movement of an operator's hand or foot.

(1) Note. Included under this definition is a means actuated by an animal's extremity.