| All Patents in class 409/325 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 167,365 | Aug. 31, 1875 | W.H. Thompson | Machine for Dressing Stone | stone dressing machines |
| 278,518 | May 29, 1883 | J.S. Detrick | Metal Planer | metal planers |
| 771,817 | Oct. 11, 1904 | M. Flather | Planer | metal planers |
| 1,365,009 | Jan. 11, 1921 | W.T. Sears | Radial drilling-machine | radial drill presses |
| 1,380,699 | Jun. 07, 1921 | G.H. Benzon, Jr. | Planer | metal planers |
| 1,586,197 | May 25, 1926 | W.S. Heckman | Universal Planer | metal planers |
| 2,049,891 | Aug. 04, 1936 | J.C. Carlton | Slide Clamp | radial drill presses |
