US PATENT SUBCLASS 451 / 312
.~ Stationary tool

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
312.~ Stationary tool {2}
313  DF  .~.~> Flexible {2}
319  DF  .~.~> Rigid {2}

DEFINITION

Classification: 451/312

Stationary tool:

(under subclass 64) Abrading machine wherein the abrading takes place solely by movement of the workpiece.

SEE OR SEARCH THIS CLASS, SUBCLASS:

423, and 428, for a stationary tool attachment.

461+, 526+, and 540+, for abrading tool structure.

SEE OR SEARCH CLASS

12, Boot and Shoe Making,

79.3, for a stationary tool machine for burnishing boots or shoes. 144, Woodworking,

28.1, for a pencil-sharpening machine (i.e., one having dynamically related tool and work holder or work guide parts), including a stationary tool; and indented subclass 28.11 for a hand manipulable pencil-sharpening machine wherein the tool may be held stationary in one hand while the other hand operates the work holder or work guide.

241, Solid Material Comminution or Disintegration,

274+, for a single comminuting surface that is stationary relative to material presented to it.