US PATENT SUBCLASS 261 / 93
.~.~.~ Submerged blast

Current as of: June, 1999
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261 /   HD   GAS AND LIQUID CONTACT APPARATUS

75  DF  CONTACT DEVICES {11}
83  DF  .~ Rotating {1}
84  DF  .~.~ Impeller {4}
93.~.~.~ Submerged blast

DEFINITION

Classification: 261/93

The impellers arranged to agitate a body of liquid into which gases are discharged below the surface.