US PATENT SUBCLASS 422 / 32
.~.~ Treating bulk material

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

1  DF  PROCESS DISINFECTING, PRESERVING, DEODORIZING, OR STERILIZING {15}
28  DF  .~ Using disinfecting or sterilizing substance {9}
32.~.~ Treating bulk material

DEFINITION

Classification: 422/32

Treating bulk material:

(under subclass 28) Process wherein the material being treated is particulate matter handled in bulk of mass, e.g., sand as opposed to articles handled individually.