US PATENT SUBCLASS 440 / 44
.~ Propulsion fluid is pressurized gas

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

38  DF  JET DRIVE {5}
44.~ Propulsion fluid is pressurized gas {1}
45  DF  .~.~> Produced by combustion

DEFINITION

Classification: 440/44

Propulsion fluid is pressurized gas:

(under subclass 38) Device wherein the motive force is provided by the ejection of a pressurized gas such as air or steam.