US PATENT SUBCLASS 73 / 458
.~.~ With counterbalancing means

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

66  DF  ROTOR UNBALANCE {7}
457  DF  .~ In situ {1}
458.~.~ With counterbalancing means

DEFINITION

Classification: 73/458

(under subclass 457) Subject matter wherein the rotor unbalance is determined by imposing known counterbalance effects thereon, neutralizing said rotor unbalance.