US PATENT SUBCLASS 40 / 523
.~.~.~ Clutch take-up

Current as of: June, 1999
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40 /   HD   CARD, PICTURE, OR SIGN EXHIBITING

446  DF  CHANGING EXHIBITOR {25}
518  DF  .~ Double reel and web {3}
522  DF  .~.~ Reversing gear {1}
523.~.~.~ Clutch take-up

DEFINITION

Classification: 40/523

Clutch take-up:

(under subclass 522) Device wherein said rollers are controlled in their movement by reversing gears and clutch take-up devices.