US PATENT SUBCLASS 210 / 242.2
.~.~ With aerating means
Current as of:
June, 1999
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210 /
HD
LIQUID PURIFICATION OR SEPARATION
241
DF
WITH MOVABLE SUPPORT
{1}
242.1
DF
.~ Float {3}
242.2
.~.~ With aerating means
DEFINITION
Classification: 210/242.2
With aerating means:
(under subclass 242.1) Apparatus having means to inject a gas.