| Patents for Thomas S. J. Douglas |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | 39,755 | Sep. 01, 1863 | A. Schwitter | Improvement in engine-turning machines |
 | RE1,534 | Sep. 08, 1863 | I.E. Palmer | Tackle Block |
 | 39,790 | Sep. 08, 1863 | A. Beekman | Improvement in scrollsaws |
 | 39,817 | Sep. 08, 1863 | L.A. Johnson | Lathe for turning billiard balls |
 | 40,275 | Oct. 13, 1863 | O. Peck | Improvement in attaching bits to braces |
 | 40,480 | Nov. 03, 1863 | S.L. Hill | Wood Clamp |
 | 40,502 | Nov. 03, 1863 | E.B. Requa | Saw Mill Head Block |
 | 41,546 | Feb. 09, 1864 | W. Stivers | Improvement in drills |
 | 41,908 | Mar. 15, 1864 | P. Crosby | Improvement in sawmills |
