US PATENT SUBCLASS 307 / 123
.~.~.~.~ Differential speed between two bodies


Current as of: June, 1999
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307 /   HD   ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS

112  DF  SWITCHING SYSTEMS {5}
116  DF  .~ Condition responsive {4}
119  DF  .~.~ Mechanical force {1}
120  DF  .~.~.~ Speed, centrifugal or kinetic force {4}
123.~.~.~.~ Differential speed between two bodies


DEFINITION

Classification: 307/123

(under subclass 120) Subject matter in which the system is automatically responsive to the speed differential of two bodies.

SEE OR SEARCH CLASS

361, Electricity: Electrical Systems and Devices,

243+, for shaft synchronizing systems.