COXE, District Judge.
This is a suit for infringement of the Shuldener patent, No. 1,796,407, issued March 17, 1931, covering apparatus for the treatment of liquid. The application as originally filed contained both method and apparatus claims, but the method claims were withdrawn during the Patent Office proceedings, leaving only the apparatus claims in the patent when it issued.
The plaintiff Shuldener is the owner of the patent, and the plaintiff Water...
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