Não informado. (1872). Official Gazette of the United States Patent Office. U.S. Patent Office, Department of Congress.
Chicago Style (17. basım) AtıfNão informado. Official Gazette of the United States Patent Office. Washington: U.S. Patent Office, Department of Congress, 1872.
MLA (8th ed.) AtıfNão informado. Official Gazette of the United States Patent Office. U.S. Patent Office, Department of Congress, 1872.
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