Proceedings and addresses : celebration of the beginning of the second century of the American patent system at Washington City, D.C., April 8, 9, 10, 1891 / published by the Executive Committee

Additional Titles:: Celebration of the beginning of the second century of the American patent system
Published:: Washington, D.C. : Press of Gedney & Roberts, 1892.
[Buffalo, New York] : William S. Hein & Co., [between 2009 and 2013]
Physical Description:: 1 online resource (v, 554 pages).