US PATENT SUBCLASS 493 / 941
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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

941FILTER

DEFINITION

Classification: 493/941

FILTER:

Operation involving the construction of a member intended to restrict the flow of a gaseous or fluid medium therethrough to separate material therefrom.