US PATENT SUBCLASS 451 / 209
.~.~.~.~ Work rotating

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
177  DF  .~ Rotary tool {3}
178  DF  .~.~ Rotary cylinder {11}
194  DF  .~.~.~ Opposed abrading tools {5}
209.~.~.~.~ Work rotating {1}
210  DF  .~.~.~.~.~> Rotary work holder

DEFINITION

Classification: 451/209

Work rotating:

(under subclass 194) Abrading machine in which the workpiece turns about an axis.

(1) Note. In this subclass are collected those machines in which the workpiece rotates without the use of a rotary work holder.

SEE OR SEARCH THIS CLASS, SUBCLASS:

134, 140, 189, 218+, 227+, 242+, 268+, 283+, 306, 307+, 317+, 394, and 397+, for other work rotating.