This is a patent infringement suit which was instituted by appellee. The bill charges appellant with infringement of United States Letters Patent No. 1,442,601, issued to Budd and Ibach, January 16, 1923. Appellant pleaded invalidity and non-infringement, and the court found the patent valid and infringed.
SPARKS, Circuit Judge.
The patent relates to the metal working art, and covers a process for making tapered disks, a machine therefor, and a process for...
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