US PATENT SUBCLASS 261 / 84
.~.~ Impeller
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
.~.~ Impeller {4}
85
DF
.~.~.~
> Hollow shaft {3}
89
DF
.~.~.~
> Sprayed {1}
91
DF
.~.~.~
> Dipping {1}
93
DF
.~.~.~
> Submerged blast
DEFINITION
Classification: 261/84
Contact devices comprising rotary impellers in a fixed receptacle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
32,
