US PATENT SUBCLASS 144 / 71
.~.~ Automatic step feed

Current as of: June, 1999
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144 /   HD   WOODWORKING

82  DF  MORTISING MACHINE HAVING ROTARY CUTTER {3}
69  DF  .~ Auger cutter {2}
71.~.~ Automatic step feed

DEFINITION

Classification: 144/71

Automatic step feed:

(under subclass 69) Auger-cutter mortiser having a step-feed, and also a diagonal feed, by which a succession of inclined mortises are formed in a blind-stile to take the ends of the slats.