US PATENT SUBCLASS 147 / *
CROZING AND CHAMFERING BARRELS

Current as of: June, 1999
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147 /   HD   COOPERING

*CROZING AND CHAMFERING BARRELS {3}
*  DD  .~> Clamped barrel {1}
*  DD  .~> Rotating barrel {4}
24  DF  .~> Hand crozes