US PATENT SUBCLASS 409 / 143
.~ Means for internal milling

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

64  DF  MILLING {29}
143.~ Means for internal milling

DEFINITION

Classification: 409/143

Means for internal milling:

(under subclass 64) Apparatus particularly adapted to cutting on an inwardly facing surface of a generally enclosed or

shell-like workpiece.