| Patents for John F. Clark |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 8,376 | Sep. 23, 1851 | W. Merrell | Lath-machine | lath making machines |
| 8,550 | Nov. 25, 1851 | F. Skinner | Shingle-machine | shingle machines |
| 8,882 | Apr. 20, 1852 | N. Blake | Submarine Auger | auger bits |
| 9,385 | Nov. 09, 1852 | A. Hulbert | Turning Jaw Vise | vises |
| 9,938 | Aug. 16, 1853 | A.W. Geaheart | Machine for preparing spoke-timber | wheelwright |
| 13,522 | Sep. 04, 1855 | J.J. Haley | Dovetailing-machine | dovetailing machines |
| 13,528 | Sep. 04, 1855 | R. Ray | Mode of Operating and Dumping Earth-Cars | excavators |
| 13,845 | Nov. 27, 1855 | J.P. Heacock | Drilling and Screw-Cutting Machine | drill presses |
| 13,955 | Dec. 18, 1855 | S. Pelton | Horse Power | animal powered apparatus |
| 14,206 | Feb. 05, 1856 | J.S. Snider | Sawmill | sawmill headblocks |
| 14,694 | Apr. 15, 1856 | W.A. Kirby | Improvement in grain and grass harvesters | harvesters |
| 22,481 | Jan. 04, 1859 | M. Bomberger | Corn Sheller | corn shellers |
