| Patents for Frank M. Leavitt |
Patents 1 -
10
of 17
      |
| Picture | Number | Date | Patentee | Title |
| | 330,791 | Nov. 17, 1885 | F.M. Leavitt | Adjusting Screw for Die Presses |
| | 343,540 | Jun. 08, 1886 | A.O. Kittredge, F.M. Leavitt | Malleting Machine |
 | 350,007 | Sep. 28, 1886 | F.M. Leavitt | Drop-hammer |
| | 353,261 | Nov. 23, 1886 | F.M. Leavitt | Automatic Ear Bending Machine |
 | 370,952 | Oct. 04, 1887 | F.M. Leavitt | Drop-hammer |
 | 380,808 | Apr. 10, 1888 | F.M. Leavitt | Drop-hammer |
 | 386,076 | Jul. 10, 1888 | F.M. Leavitt | Drop-hammer |
 | 401,566 | Apr. 16, 1889 | F.M. Leavitt | Drop-hammer |
| | 568,575 | Sep. 29, 1896 | F.M. Leavitt | Clutch for Power Presses |
| | 693,872 | Feb. 25, 1902 | F.M. Leavitt | Propulsion of torpedoes, &c., by compressed air |
