US PATENT SUBCLASS 210 / 231
.~ Plates or frames
Current as of:
June, 1999
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210 /
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LIQUID PURIFICATION OR SEPARATION
224
DF
SECTIONAL CHAMBER PRESS TYPE
{5}
231
.~ Plates or frames
DEFINITION
Classification: 210/231
(under subclass 224) Apparatus comprising frame and/or plate structure, per se, restricted to use with sectional chamber press type filter elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
230, for plates and frames having supporting means which aid
in assembling and disassembling.
541, for separator adjuncts of general application.
SEE OR SEARCH CLASS
100, Presses, 295+, for platens or pressure surfaces there provided for.