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