US PATENT SUBCLASS 451 / 138
.~.~.~.~.~ Rocking

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
119  DF  .~ Rotary reciprocating tool {2}
120  DF  .~.~ Cylindrical tool {2}
124  DF  .~.~.~ Rectilinear {13}
136  DF  .~.~.~.~ Reciprocating work holder {2}
138.~.~.~.~.~ Rocking

DEFINITION

Classification: 451/138

Rocking:

(under subclass 136) Abrading machine in which the workpiece is turned to-and-fro about an axis that coincides with the point of engagement of the tool with the workpiece.

(1) Note. A rocking workpiece is engaged by the abrading tool in the manner that a rocking chair is engaged by the floor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

171, 201+, 204+, 216+, 226+, 266, 276+, and 396, for other rocking work holders.