US PATENT SUBCLASS 451 / 364
WORK HOLDER

Current as of: June, 1999
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451 /   HD   ABRADING

364WORK HOLDER {10}
365  DF  .~> Clamp {8}
388  DF  .~> Vacuum
389  DF  .~> Drop or dop stick
390  DF  .~> Lens or prism
391  DF  .~> Portable
392  DF  .~> Work reciprocating {2}
397  DF  .~> Work rotating {1}
402  DF  .~> Rotary
403  DF  .~> Indexing {1}
405  DF  .~> Angularly adjustable

DEFINITION

Classification: 451/364

WORK HOLDER:

(under the class definition) Means in general for securing the workpiece in position or to facilitate traversing it past the abrader.

(1) Note. A work holder includes means to grippingly secure a workpiece, means to secure a workpiece in position by a vacuum, means to confine and guide a workpiece, etc.

SEE OR SEARCH CLASS

30, Cutlery,

329+, for a blade holder to make a general utility knife, but which may be used for holding the blade while sharpening. See (2) Note of the class definition of Class 30.

144, Woodworking,

306+, for a device for securing work upon a moving bed in a woodworking machine or while operated upon by a traveling woodworking cutter.

269, Work Holders, for a device for clamping, supporting, and/or holding an article (or articles) in position to be operated on or treated. See notes thereunder for other related loci.