US PATENT SUBCLASS 73 / 457
.~ In situ

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

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

DEFINITION

Classification: 73/457

(under subclass 66) Subject matter in which study of the rotor unbalance is made without removing the device from its normally operative position.