COLEMAN, District Judge.
This is a patent suit brought under Revised Statute Sec. 4915, as amended by the Acts of March 2, 1927, and March 2, 1929, 35 U.S.C.A. § 63, following refusal by the Commissioner of Patents to grant a patent to the plaintiff company as assignee of one George W. Swenson. The patent application involved relates to alleged improvements in granular material such as is particularly used as a surfacing for asphalt shingles and other forms of...
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