House documents, 81st Congress. 494. Decisions of commissioner of patents and of United States courts in patent and trade-mark cases; compiled from v. 606-617 of Official gazette of Patent Office during 1948.
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Decisions of commissioner of patents and of United States courts in patent and trade-mark cases; compiled from v. 606-617 of Official gazette of Patent Office during 1948.
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House documents, 81st Congress. 494. Decisions of commissioner of patents and of United States courts in patent and trade-mark cases; compiled from v. 606-617 of Official gazette of Patent Office during 1948.