US PATENT SUBCLASS 493 / 44
.~.~ Including fluid contact for forming

Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

39  DF  CIGARETTE FILTER MAKING {5}
42  DF  .~ With shaping or compacting of filter material {4}
44.~.~ Including fluid contact for forming

DEFINITION

Classification: 493/44

Including fluid contact for forming:

(under subclass 42) Method or apparatus including subjecting the material being formed to direct engagement therewith of a gas or liquid to assist in such forming operation.