US PATENT SUBCLASS 144 / 226
.~ Polygonal rotary cutter having convex bit seat

Current as of: June, 1999
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144 /   HD   WOODWORKING

218  DF  ROTARY CUTTER {22}
226.~ Polygonal rotary cutter having convex bit seat

DEFINITION

Classification: 144/226

Polygonal rotary cutter having convex bit seat:

(under subclass 218) Rotary cutter comprising a built-up cutter in which the bits are curved and are secured on a convex face of a head having a polygonal cross-section.