ATWELL, Chief Judge.
This patent was issued on June 14, 1938, and is number 2,120,667.
It carries fifteen claims, and the plaintiff asserts its right to relief here on Claims 6, 10, and 14.
In infringement cases, the burden rests upon the plaintiff to establish infringement, but the burden is on the defendant to demonstrate illegality of patent claims.
In an infringement case, reasonable doubt must be resolved in favor of the claim for which...
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