US PATENT SUBCLASS 416 / 138
.~.~ With manual control means


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

131  DF  ARTICULATED, RESILIENTLY MOUNTED OR SELF-SHIFTING IMPELLER OR WORKING MEMBER {7}
135  DF  .~ Resilient bias or mount {2}
138.~.~ With manual control means


DEFINITION

Classification: 416/138

(under subclass 135) Apparatus wherein the device includes mechanism whereby an operator may regulate the operation thereof.