US PATENT SUBCLASS 416 / 234
.~ Integrally shaped or blended into hub

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

223 R  DF  SPECIFIC BLADE STRUCTURE (E.G., SHAPE, MATERIAL, ETC.) {18}
234.~ Integrally shaped or blended into hub

DEFINITION

Classification: 416/234

(under subclass 223) Apparatus wherein the impeller blade is so shaped from or joined to carrier means therefor as to blend smoothly therewith.