Patent for Sale:Private Listing: Number 5924
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Class 290: Prime-Mover Dynamo Plants
Production and transmission of electric power and does not include any specific use to which the power is put.
Class 415: Rotary Kinetic Fluid Motors Or Pumps
This is the class for apparatus, and corresponding methods of operating such apparatus, comprising a runner, and in which a working fluid is guided to, around, or from, the runner. A means for guiding or confining, the working fluid must be present. This class includes typically turbines, wind and water wheels, centrifugal pumps and blowers; and such casings, conduits, guide means and other elements peculiar to the subject matter of this class not otherwise classifiable.
Class 310: Electrical Generator Or Motor Structure
This is the residual class for all subject matter, not elsewhere classified, relating to electrical generator or motor structure.