US PATENT SUBCLASS 440 / 13
OSCILLATING PROPELLING MEANS

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

13OSCILLATING PROPELLING MEANS {3}
14  DF  .~> Fishtail motion propelling means {1}
16  DF  .~> Moving wave propeller
17  DF  .~> Having nonpropelling cycle segment {3}

DEFINITION

Classification: 440/13

OSCILLATING PROPELLING MEANS:

(under the class definition) Device wherein the motive force for the vessel is produced by a back and forth movement of the propelling means.