| Patents for W. B. Corwin |
Patents 1 -
10
of 12
      |
| Picture | Number | Date | Patentee | Title |
 | 296,053 | Apr. 01, 1884 | Z.C. Phillips | Boring-machine |
 | 310,041 | Dec. 30, 1884 | S. Forrester | Pencil-sharpener |
 | 332,146 | Dec. 08, 1885 | S. Forrester | Pencil-sharpener |
 | D16,631 | Apr. 20, 1886 | T. Bakewell | Design for an Ax |
 | 404,811 | Jun. 04, 1889 | F. Wichelhaus | Cartridge Crimping Tool |
| | 421,391 | Feb. 18, 1890 | J.H. Dixon | Tool Attachment |
 | 447,805 | Mar. 10, 1891 | R. Yanda | Calipers |
 | 460,590 | Oct. 06, 1891 | P. Meyer | Pliers |
 | 468,804 | Feb. 16, 1892 | G.P. Hobbs | Jar-Cap Spanner |
 | 512,938 | Jan. 16, 1894 | D.W. Black | Sucker Rod Elevator and Wrench |
