| Patents for Walter J. F. Liddell |
Patents 1 -
15
of 26
      |
| Number | Date | Patentee | Title | Type |
| 27,411 | Mar. 06, 1860 | W.J. Liddell | Car-spring | |
| 124,212 | Mar. 05, 1872 | W.J. Liddell | Improvement in horse-powers | animal powered apparatus |
| 154,057 | Aug. 11, 1874 | W.J. Liddell | Improvement in horse-powers | animal powered apparatus |
| 174,139 | Feb. 29, 1876 | W.J. Liddell | Improvement in furnaces for portable boilers | portable boilers |
| 214,046 | Apr. 08, 1879 | W.J. Liddell | Improvement in presses for cotton, hay, &c. | cotton presses |
| 220,160 | Sep. 30, 1879 | W.J. Liddell | Improvement in compound engines | steam engines |
| 238,935 | Mar. 15, 1881 | W.J. Liddell | Piston-packing | piston ring and packing |
| 238,936 | Mar. 15, 1881 | W.J. Liddell | Head-block for saw-mills | sawmill headblocks |
| 240,031 | Apr. 12, 1881 | W.J. Liddell | Straw-burning furnace | industrial furnaces |
| 241,384 | May 10, 1881 | W.J. Liddell | Hay and cotton press | cotton presses |
| 271,482 | Jan. 30, 1883 | W.J. Liddell | Method of setting steam-boilers | stationary boilers |
| 272,718 | Feb. 20, 1883 | W.J. Liddell | Portable press | hay or straw presses |
| 272,719 | Feb. 20, 1883 | W.J. Liddell | Hay and cotton press | cotton presses |
| 274,129 | Mar. 20, 1883 | W.J. Liddell | Circular saw mill | circular sawmills |
| 274,794 | Mar. 27, 1883 | W.J. Liddell | Shaft-hanger | industrial machine shaft hangers |
