US PATENT SUBCLASS 16 / 40
.~ Rigid wheel supports

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

18 R  DF  CASTERS {20}
40.~ Rigid wheel supports

DEFINITION

Classification: 16/40

(under subclass 18) Casters which are nonswiveling and have rigid wheel-mounts.