US PATENT SUBCLASS 493 / 292
.~ Tube including metal component


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

269  DF  TUBE MAKING {15}
292.~ Tube including metal component


DEFINITION

Classification: 493/292

Tube including metal component:

(under subclass 269) Method or apparatus for making a hollow cylinder including a portion that is known chemically as a metal.

(1) Note. Included herein is assembling a metal (including foil) with a nonmetal in the formation of a tube.

SEE OR SEARCH CLASS

72, Metal Deforming, for forming an article, including forming a tube, of metal or of a metal/nonmetal laminate including bending or drawing of the metal.