Decisions. Decisions of commissioner of parents and of United States courts in patent and trade-mark and copyright cases; compiled from Official gazette of Patent Office, [calendar] year 1923.
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Decisions. Decisions of commissioner of parents and of United States courts in patent and trade-mark and copyright cases; compiled from Official gazette of Patent Office, [calendar] year 1923.
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Decisions. Decisions of commissioner of parents and of United States courts in patent and trade-mark and copyright cases; compiled from Official gazette of Patent Office, [calendar] year 1923.