US PATENT SUBCLASS 108 / 21
.~ Intermittent drive


Current as of: June, 1999
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108 /   HD   HORIZONTALLY SUPPORTED PLANAR SURFACES

20  DF  POWER DRIVEN {2}
21.~ Intermittent drive


DEFINITION

Classification: 108/21

(under subclass 20) Device wherein the means imparts motion to the surface in interrupted sequence.