US PATENT SUBCLASS 451 / 212
.~.~.~ Reciprocating work holder

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}
212.~.~.~ Reciprocating work holder {4}
213  DF  .~.~.~.~> Rectilinear {6}
226  DF  .~.~.~.~> Rocking {1}
229  DF  .~.~.~.~> Blade sharpener
230  DF  .~.~.~.~> Harvester knife

DEFINITION

Classification: 451/212

Reciprocating work holder:

(under subclass 178) Abrading machine having means to carry the workpiece in an alternating back-and-forth movement.

(1) Note. The reciprocating movement of the work holder in this subclass is other than a simple or compound rectilinear movement in a single plane, such a movement combined with a rocking or rotary movement, a simple rocking movement, or such movement combined with a rotary movement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

133, 136+, 170+, 199+, 264+, 272+, 305+, 314+, 320+, and 230+, for other reciprocating work holders.