US PATENT SUBCLASS 409 / 170
.~.~ Including fluid drive

Current as of: June, 1999
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409 /   HD   GEAR CUTTING, MILLING, OR PLANING

64  DF  MILLING {29}
145  DF  .~ Including means to infeed work to cutter {10}
170.~.~ Including fluid drive

DEFINITION

Classification: 409/170

Including fluid drive:

(under subclass 145) Apparatus wherein the means to cause the workpiece to move toward the cutting tool during the shaping stroke includes means adapted to be impelled by the force of flowing liquid or gas acting thereupon, whereby moving force is tranmitted to the workpiece.