SWAN, Circuit Judge (after stating the facts as above).
The process patent illustrates and describes an apparatus for grinding logs into pulp. The specifications explain that the inventor's object is to obtain pulp which shall have longer, stronger, and more uniform fibers than have been secured by former grinding processes, and that this object is to be attained by making suitable grooves or depressions in the face of the grindstone, in which abraded fibers will...
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