US PATENT SUBCLASS 451 / 216
.~.~.~.~.~ Rocking

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  DF  .~.~.~ Reciprocating work holder {4}
213  DF  .~.~.~.~ Rectilinear {6}
216.~.~.~.~.~ Rocking {1}
217  DF  .~.~.~.~.~.~> Hob, tap, or fluted thread

DEFINITION

Classification: 451/216

Rocking:

(under subclass 213) Abrading machine in which the work holder moves to-and-fro about an axis that coincides with the point of engagement of the abrading tool and the workpiece.

SEE OR SEARCH THIS CLASS, SUBCLASS:

138, 171, 201, 204, 226+, 266, and 276+, for other rocking work holders.