US PATENT SUBCLASS 318 / 598
.~.~.~ With a separate slewing motor

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
590  DF  .~ Multiple mode systems {4}
597  DF  .~.~ Slewing systems {1}
598.~.~.~ With a separate slewing motor

DEFINITION

Classification: 318/598

(under subclass 597) Subject matter in which a separate "slewing" motor is provided when the system operates in the "slewing" mode.