US PATENT SUBCLASS 261 / 52
.~.~.~.~ Gas inlet and outlet
Current as of:
June, 1999
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261 /
HD
GAS AND LIQUID CONTACT APPARATUS
19
DF
FLUID DISTRIBUTION
{5}
38
DF
.~ Valved {8}
42
DF
.~.~ Multiple valves {5}
43
DF
.~.~.~ Connected {4}
52
.~.~.~.~ Gas inlet and outlet
DEFINITION
Classification: 261/52
Including gas inlet and outlet valves.