HAZEL, District Judge.
This is an action in equity for infringement of patents Nos. 1,285,117, granted November 19, 1918 (application dated February 17, 1917), jointly to Harry D. Gibbs and Courtney Conover, and reissue patent 15,520 solely to Conover, dated January 9, 1923 (application filed April 30, 1919, original patent dated December 9, 1919), covering in the first patent a process for making phthalic anhydride, phthalic acid, benzoic acid, and naphthaquinones...
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