Erastus L. Hawks |
---|
|
Page Sections
Documents |
Date | Document Name & Details | Documents |
---|---|---|
14 January 1896 | Street-Sweeper. United States Patent US 553,065 Erastus L. Hawks for the International Sweeping Machine Company | PDF - 661KB - 6 pages |
14 January 1896 | Street-Sweeper. United States Patent US 553,066 Erastus L. Hawks and David F. Graham for the International Sweeping Machine Company | PDF - 370KB - 4 pages |