AUGUSTUS N. HAND, Circuit Judge.
The patent in suit relates to a process for making artificial leather. The process consists of five steps thus described in the specification p. 1, 1. 32: "The leather substitute is made by taking suitable woven fabric and passing it through a napping machine to pull a part of the twisted fibres in the threads or cords composing the fabric, to form a fibrous surface on each side of the woven fabric, winding the prepared fabric in a...
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