FOIL OR OTHER THIN SHEET-METAL MAKING OR TREATING:
(under the class definition) Process or apparatus for manufacturing or modifying small thickness sheet metal, e.g., foil, not provided for in another class.
(1) Note. The lines existing between Class 29, subclasses 17.1+, and Class 72, Metal Deforming, are as follows:
Class 72 takes (1) a process or apparatus for rolling sheet metal whether a sheet, strip, pack, or otherwise, or (2) a process or apparatus for rolling sheet metal whether a sheet, strip, pack, or otherwise when combined with any nonrolling operation acceptable in Class 72.
Class 29 takes (1) a process or apparatus for manufacturing metal foil other than by rolling and (2) process or apparatus for rolling sheet metal when combined with another operation, which combination is not classified in Class 72.
(2) Note. "Foil" is film-like metal, generally less than 0.010 inches thick which, because of its frailty must be handled much like a sheet of paper.
SEE OR SEARCH THIS CLASS, SUBCLASS:
33, for a machine for performing a combination of operations
on a strip. 81.1+, for a process or apparatus for removing or preventing scale.
527.1, for a process including applying or shaping of fluent material.
SEE OR SEARCH CLASS
72, Metal Deforming, and see (1) Note above.
118, Coating Apparatus, for metal or nonmetal coating apparatus combined with various treating means such as cutting or deforming.
164, Metal Founding,
476, for continuous casting combined with rolling.
427, Coating Processes, for a method of coating a substrate, generally.
428, Stock Material or Miscellaneous Articles,
606+, for metallic foil or filament smaller than 6 mils.
