ADLER, District Judge.
This is a suit for infringement of a patent (No. 1,729,070) granted September 24, 1929, to Howard S. Gerken for improvements in apparatus for washing and separating or grading materials, as for instance, gravel from waterways, on an application filed February 27, 1926. The patent has thirty claims. Those in suit are claims 16 to 30, inclusive.
Corporate capacity and title to the patent are admitted. Infringement and validity
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