HICKENLOOPER, Circuit Judge.
Appellant commenced this action in the District Court, complaining of the infringement by appellee of claims 5, 6, 8, 12, and 16, of patent numbered 1,066,468, and claims 1 and 2 of patent numbered 1,196,744, the patents being dated, respectively, July 8, 1913, and August 29, 1916, and both having been issued upon applications by Lewis W. Chubb. Both patents relate to the art of electric welding. Both were held invalid in the District...
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