US PATENT SUBCLASS 57 / 321
.~.~.~.~ Spindle drive control

Current as of: June, 1999
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57 /   HD   TEXTILES: SPINNING, TWISTING, AND TWINING

1 R  DF  APPARATUS AND PROCESSES {45}
315  DF  .~ With drafting {5}
319  DF  .~.~ Intermittent {1}
320  DF  .~.~.~ Mule type {3}
321.~.~.~.~ Spindle drive control {1}
322  DF  .~.~.~.~.~> Quadrant {1}

DEFINITION

Classification: 57/321

Spindle drive control:

(under subclass 320) Subject matter including means for driving and regulating the speed of the spindles.