US PATENT SUBCLASS 55 / 381
.~ Seaming, reinforcing or bag structure

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

361  DF  FLEXIBLE OR COLLAPSIBLE BAG TYPE {14}
381.~ Seaming, reinforcing or bag structure {1}
382  DF  .~.~> Multi-ply, strata, or laminated

DEFINITION

Classification: 55/381

(under subclass 361) Apparatus relating to the arrangement or interrelation of the parts or materials which comprise the permeable separating member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

361, for bag filter material, per se.

522+, for separator materials.