WEST, District Judge.
On May 29, 1917, patent 1,228,267, relating to rotary pumps, was issued to Adolph Wahle with eight claims. On May 19, 1925, there was a reissue to the same patentee by which four claims were added and some insignificant alterations in the specifications. This suit is for the infringement of claims 3 and 6 of the reissue patent, 16,074. The defenses are invalidity and noninfringement.
The device which the plaintiff makes and sells under...
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