Combination claims employing terms "means", "mechanism", etc., followed by a statement of function with relation to the statute : a paper read September 21, 1916, before the Examining Corps of the United States Patent Office / by John J. Darby
Washington, D.C. : [publisher not identified], 1916. Washington, D.C. : Law Reporter Printing Company [Getzville, New York] : William S. Hein & Company, [2014]