US PATENT SUBCLASS 55 / 517
.~.~.~ Between telescoped or nonplanar retainers

Current as of: June, 1999
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55 /   HD   GAS SEPARATION

490  DF  WITH MEANS SECURING OR RETAINING SEPARATING MEDIA {7}
512  DF  .~ Discrete fibrous or particulate solids {4}
516  DF  .~.~ Held between openwork {3}
517.~.~.~ Between telescoped or nonplanar retainers

DEFINITION

Classification: 55/517

(under subclass 516) Apparatus in which the confining or retaining means is comprised of two members, one member partially or completely within the other member, or at least one member being of irregular or curved configuration.