HICKS, Circuit Judge.
Suit under the Declaratory Judgment Act. Sec. 274d of the Judicial Code, 28 U.S.C.A. § 400.
Appellant, James C. Johnston, was the patentee-owner of Patent No. 1,979,470 for a "Method of Joining Bell and Spigot Pipe Sections." The patent was previously adjudged valid and infringed in a suit by Johnston's licensees against certain users of products manufactured by The Atlas Mineral Products Company of Pennsylvania, appellee here and...
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