US PATENT SUBCLASS 172 / 637
.~.~.~ Plural actuators, independently pivoted tool bars

Current as of: June, 1999
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172 /   HD   EARTH WORKING

613  DF  PLURAL RELATIVELY MOVABLE TOOLS {14}
634  DF  .~ Parallel, pivotally adjusted tool bars {2}
635  DF  .~.~ With actuator {3}
637.~.~.~ Plural actuators, independently pivoted tool bars

DEFINITION

Classification: 172/637

(under subclass 635) Apparatus comprising a plurality of separate actuators for independently pivoting different bars.