US PATENT SUBCLASS 451 / 140
.~.~.~.~ Work rotating

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
119  DF  .~ Rotary reciprocating tool {2}
120  DF  .~.~ Cylindrical tool {2}
124  DF  .~.~.~ Rectilinear {13}
140.~.~.~.~ Work rotating {3}
141  DF  .~.~.~.~.~> Helical blade
142  DF  .~.~.~.~.~> Cylindrical surface (e.g., roll) abrader
143  DF  .~.~.~.~.~> Rotary work holder {5}

DEFINITION

Classification: 451/140

Work rotating:

(under subclass 124) Abrading machine in which the workpiece turns about an axis.

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

SEE OR SEARCH THIS CLASS, SUBCLASS:

134, 189, 209+, 218+, 227+, 242+, 268+, 283+, 306, 307+, 317+, 394, and 397+, for other work rotating.