US PATENT SUBCLASS 384 / 46
.~ Roller bearing for extensive cylinder

Current as of: June, 1999
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384 /   HD   BEARINGS

7  DF  LINEAR BEARING {20}
46.~ Roller bearing for extensive cylinder

DEFINITION

Classification: 384/46

Roller bearing for extension cylinder:

(under subclass 7) Subject matter comprising a pulley-type roller bearing for a relatively long shaft such as that employed in railroad switch pull-shafts, or pull-shafts for oil well stripper pumps.