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Digest of Decisions of Law and Practice in the Patent Office and the United States Courts in Patents, Trade Marks, Copyrights and Labels, 1912-1919, Etc

Willard Lacy POLLARD

出版	J. Byrne & Company, 1920
URL	http://books.google.com.hk/books?id=QkEXMwEACAAJ&hl=&source=gbs_api