US PATENT SUBCLASS 451 / 89
.~.~ Having sandblast chamber

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
75  DF  .~ Sandblast {13}
89.~.~ Having sandblast chamber

DEFINITION

Classification: 451/89

Having sandblast chamber:

(under subclass 75) Abrading machine provided with a substantially closed vessel into or through which the workpiece is placed or passed during the abrading operation.