EVAN A. EVANS, Circuit Judge.
Appellants brought suit to enjoin infringement of two patents, the Heidbrink reissue patent, No. 15,873, issued July 22, 1924, and the Heidbrink reissue patent, No. 15,874, issued July 22, 1924. Each covers "anæthetic apparatus." The first-named patent replaced patent No. 1,309,686, bearing date July 15, 1919, while the second replaced patent No. 1,265,910, dated May 4, 1918.
Appellee is a distributor. McKessen, the manufacturer...
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