THOMPSON, Circuit Judge.
These are appeals from decrees of the District Court for the District of Delaware. Universal Oil Products Company, a South Dakota corporation, hereinafter referred to as the South Dakota Company, was the owner of the Dubbs and Egloff patents No. 1,392,629 and No. 1,537,593, respectively. On March 11, 1929, and July 7, 1931, it filed bills of complaint in which it alleged that these patents had been infringed by Root Refining Company, the appellant...
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