| Patents for William B. Leonard |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
| | 3,057X | Jan. 09, 1819 | W.B. Leonard | Spindle and bobbin for spinning cotton |
| | 3,058X | Jan. 09, 1819 | W.B. Leonard | Machine for making cordage |
| | 4,766X | May 23, 1827 | W.B. Leonard | Delivering the yarn uniformly in the power loom |
| | 4,767X | May 23, 1827 | W.B. Leonard | Taking up the cloth uniformly in the power loom |
| | 7,760X | Sep. 16, 1833 | W.B. Leonard | Carding, cotton, engine |
| | 7,761X | Sep. 16, 1833 | W.B. Leonard | Cotton, rail way, drawing head for |
 | 2,960 | Feb. 20, 1843 | W.B. Leonard | Cotton Press |
