US PATENT SUBCLASS 422 / 156
.~.~ With plural sequential reaction zones or chambers

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

129  DF  CHEMICAL REACTOR {28}
150  DF  .~ Pigment or carbon black producer {4}
156.~.~ With plural sequential reaction zones or chambers {1}
157  DF  .~.~.~> With movably or removably mounted plug means for converting reactor from (N) to (N+1) reaction stages

DEFINITION

Classification: 422/156

With plural sequential reaction zones or chambers:

(under subclass 150) Apparatus having multiple, sequentially arranged reaction zones or chambers.