US PATENT SUBCLASS 16 / 89
.~ Cylinder

Current as of: June, 1999
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16 /   HD   MISCELLANEOUS HARDWARE

87 R  DF  PANEL HANGERS, TRAVELERS AND/OR TRACKS {13}
89.~ Cylinder

DEFINITION

Classification: 16/89

(under subclass 87) Devices having rolling elements in the form of cylinders.