| Patents for William D. Leavitt |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 7,027 | Jan. 15, 1850 | N.G. Norcross | Circular-saw mill | circular sawmills |
| 15,012 | Jun. 03, 1856 | W.D. Leavitt | Sawing machine | circular saws |
| 21,345 | Aug. 31, 1858 | W.D. Leavitt | Method of attaching the spreader to saws of circular sawing machines | circular saws |
| 21,838 | Oct. 19, 1858 | W.D. Leavitt | Resawing-machine | circular sawmills |
| 23,377 | Mar. 29, 1859 | W.D. Leavitt, R.S. Lee | Rocker-box for saw-shafts | woodworking machine mechanisms |
| 79,865 | Jul. 14, 1868 | W.D. Leavitt, H. Shaw | Improvements in grinding-plates for grist-mills | |
| RE3,122 | Sep. 15, 1868 | H. Shaw, W.D. Leavitt | Improvements in grinding-plates for grist-mills | |
| D3,457 | Apr. 27, 1869 | W.D. Leavitt, H. Shaw | Design for a grinding-mill | |
| D3,458 | Apr. 27, 1869 | W.D. Leavitt, H. Shaw | Design for a grinding-mill | |
| 93,455 | Aug. 10, 1869 | W.D. Leavitt | Corn Sheller | miller |
| 130,728 | Aug. 20, 1872 | W.D. Leavitt | Improvement in cotton-presses | cotton presses |
| 188,154 | Mar. 06, 1877 | W.D. Leavitt, B.J. Thurston | Improvement in gas and water regulators | |
| 220,626 | Oct. 14, 1879 | W.D. Leavitt | Improvement in machines for manufacturing flour | grist mills |
| 240,912 | May 03, 1881 | W.D. Leavitt | Baling-press | hay or straw binders |
