US PATENT SUBCLASS 470 / 97
.~.~ And reamer

Current as of: June, 1999
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470 /   HD   THREADED, HEADED FASTENER, OR WASHER MAKING: PROCESS AND APPARATUS

87  DF  APPARATUS FOR MAKING INTERNALLY THREADED FASTENER, I.E., NUT {7}
96  DF  .~ Having tapper {7}
97.~.~ And reamer

DEFINITION

Classification: 470/97

And reamer:

(under subclass 96) Subject matter further provided with a mechanism capable enlarging a hole in the nut.