Digest of patent and trade-mark cases decided by the Court of Appeals of the District of Columbia on appeal from the commissioner of patents : and of copyright cases on appeal from the Supreme Court of the District of Columbia : from the date of the organization of the Court of Appeals in 1893 to June 18, 1908, and reported in the official reports of the court, volumes 1 to 31, inclusive; together with cases on those subjects in which the opinions of the Supreme Court of the District of Columbia have been reported in the Washington law reporter, volume, 25 to 35 inclusive, and cases decided by the Supreme Court of the United States on appeal from the Court of Appeals