US PATENT SUBCLASS 451 / 120
.~.~ Cylindrical tool

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
119  DF  .~ Rotary reciprocating tool {2}
120.~.~ Cylindrical tool {2}
121  DF  .~.~.~> Oscillating {2}
124  DF  .~.~.~> Rectilinear {13}

DEFINITION

Classification: 451/120

Cylindrical tool:

(under subclass 119) Abrading machine wherein the abrading tool has a work engaging surface coextensive with and parallel to the axis about which it turns.

(1) Note. In this subclass is a machine in which the reciprocation of the abrading tool is other than a simple rectilinear or oscillating movement in one plane.

SEE OR SEARCH THIS CLASS, SUBCLASS:

178, for a machine including a cylindrical abrading tool not having reciprocating motion.