What are the purposes of a patent for a combination of two elements?

MultiRegion, United States of America

The following excerpt is from Herschensohn v. Hoffman, 593 F.2d 893 (9th Cir. 1979):

None of these listed "purposes" of the patent produce a "new or different function" (Anderson's-Black Rock v. Pavement Co., 396 U.S. 57 at 60, 90 S.Ct. 305, 24 L.Ed.2d 258 (1969)) from that produced by the old elements in the combination.

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