US PATENT SUBCLASS 96 / FOR 169
.~.~ Sequential cleaning of plural units (55/273)

Current as of: June, 1999
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96 /   HD   GAS SEPARATION: APPARATUS

FOR 167  DF  WITH TIMING OR CHANGEABLE PROGRAMMING MEANS (55/271) {1}
FOR 168  DF  .~ Of cleaning mechanism for media (55/272) {1}
FOR 169.~.~ Sequential cleaning of plural units (55/273)

DEFINITION

Classification: 96/FOR.169

Foreign art collection including apparatus having two or more separating members or elements from which residue or separated constituents is removed one after another.