US PATENT SUBCLASS 73 / 485
.~.~.~ With expansible or contractible centering means

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

66  DF  ROTOR UNBALANCE {7}
482  DF  .~ Gravitational moment tilts rotor about axis transverse to spin axis {1}
483  DF  .~.~ Universally tiltable {3}
485.~.~.~ With expansible or contractible centering means

DEFINITION

Classification: 73/485

(under subclass 483) Subject matter including expansible or contractible rotor centering means.