US PATENT SUBCLASS 416 / 201 A
.~.~ Non-turbo machine

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

198 R  DF  MULTIPLE AXIALLY SPACED WORKING MEMBERS {4}
201 R  DF  .~ Differing radii {1}
201 A.~.~ Non-turbo machine

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 416/201

(under subclass 198) Apparatus wherein the longitudinally spaced working members are of unequal radial lengths.