US PATENT SUBCLASS 261 / 85
.~.~.~ Hollow shaft

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}
85.~.~.~ Hollow shaft {3}
86  DF  .~.~.~.~> Gas trapping
87  DF  .~.~.~.~> Gas delivering
88  DF  .~.~.~.~> Liquid spraying

DEFINITION

Classification: 261/85

The impeller-shaft adapted to conduct fluids.