US PATENT SUBCLASS 493 / 291-- .~ With surface treatment (e.g., polishing, burnishing, etc.)

US PATENT SUBCLASS 493 / 291
.~ With surface treatment (e.g., polishing, burnishing, etc.)

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}
291		.~ With surface treatment (e.g., polishing, burnishing, etc.)

DEFINITION

Classification: 493/291

With surface treatment (e.g., polishing, burnishing, etc.):

(under subclass 269) Method or apparatus combined with modification of a surface of the sheet or web workpiece or the product.

SEE OR SEARCH THIS CLASS, SUBCLASS:

271, for surface treatment of a formed cylinder to make a precise change in a dimension of that cylinder.

467+, for surface treatment of a sheet or web, generally.

SEE OR SEARCH CLASS

29, Metal Working, for burnishing of materials other than a sheet or web, generally.