US PATENT SUBCLASS 33 / 637
.~.~.~.~.~ Boring bar holder

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

501  DF  GAUGE {61}
613  DF  .~ Collocating {14}
626  DF  .~.~ Tool or surrogate {4}
628  DF  .~.~.~ Cutter or shaper {9}
636  DF  .~.~.~.~ Bit with respect to its holder {1}
637.~.~.~.~.~ Boring bar holder

DEFINITION

Classification: 33/637

Boring bar holder:

(under subclass 636) Subject matter wherein the tool holder is a boring bar for the bit.