US PATENT SUBCLASS 451 / 272
.~.~.~ Reciprocating work holder

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
177  DF  .~ Rotary tool {3}
259  DF  .~.~ Rotary disk {10}
272.~.~.~ Reciprocating work holder {2}
273  DF  .~.~.~.~> Rectilinear {1}
276  DF  .~.~.~.~> Rocking {1}

DEFINITION

Classification: 451/272

Reciprocating work holder:

(under subclass 259) Abrading machine having means to carry the workpiece in an alternating back-and-forth movement.

(1) Note. This subclass includes a machine in which the work holder has a reciprocation other than a simple rectilinear one, such motion combined with work rotating, or a simple rocking or oscillation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

133, 136+, 170+, 199+, 212+, 264+, 305+, 314+, 320+, and 392+, for other reciprocating work holders.

SEE OR SEARCH CLASS

409, Gear Cutting, Milling, or Planing,

162, for reciprocating or oscillating means to infeed work to the cutter.