US PATENT SUBCLASS 416 / 213 R
.~ Welded, cemented or fused

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

204 R  DF  SPECIFIC WORKING MEMBER MOUNT {9}
213 R.~ Welded, cemented or fused {1}
213 A  DF  .~.~> Non-turbo machine

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 416/213

(under subclass 204) Apparatus wherein the blades are attached to the hub or shaft by fusion (e.g., welding, etc.) or adhesive bonding.