GUSN-153349
3 v. (1951 p.) ; 26 cm.
Patents
Leggett, Mortimer Dormer, 1821-1896.
United States. Patent Office.
New York : Arno Press
America in two centuries, an inventory
3 v. (1951 p.) ; 26 cm.
On spine: Subject index of patents for inventions; 1790-1873.
Reprint of the 1874 ed. published by Government Printing Office, Washington.
Rodris Roth Library.
0405077378
Roth T223.D7 A45 1976 vol.1
Roth T223.D7 A45 1976 vol.2
Roth T223.D7 A45 1976 vol.3
Indexes.
United States
Patents for inventions: 1790-1873.
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