ALBERT V. BRYAN, Circuit Judge.
A patent for a permanent hair waving solution and method was upheld, and declared infringed, in the District Court at the suit of the owner, Tidewater Patent Development Company, Inc. against the partnership of K. M. Kitchen Beauty Supply Company. Defendants appeal and we reverse, finding the patent invalid.
In our judgment the patent in controversy (i. e. the six claims in dispute), known as No. 323, not only is void as duplicative...
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