US PATENT SUBCLASS 144 / 87
.~ Frusto-conical bit

Current as of: June, 1999
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144 /   HD   WOODWORKING

85  DF  DOVETAILING MACHINE {4}
87.~ Frusto-conical bit

DEFINITION

Classification: 144/87

Frusto-conical bit:

(under subclass 85) Machine in which the undercut groove is formed by the relative lateral movement of a bit broader at the point than at the shank.

SEE OR SEARCH THIS CLASS, SUBCLASS:

86, for consecutive cutters used to form an undercut groove.