SPARKS, Circuit Judge.
Appellant charged appellee with infringement of its United States patents to Waters, No. 1,684,900, and to Butterfield, No. 1,834,141. The former was issued September 18, 1928, on an application filed November 20, 1926; the latter was issued December 1, 1931, on an application filed February 20, 1929. The defense was invalidity and non-infringement. At the conclusion of the evidence the court dismissed the bill of complaint for want of equity...
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