| All Patents in class 451/129 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 236,422 | Jan. 11, 1881 | R. Bickemeyer | Lathe for turning irregular forms | pattern lathes |
| 492,451 | Feb. 28, 1893 | F.D. Winkley | Grinding apparatus | |
| 498,240 | May 30, 1893 | R. Conrader | Reamer Grinding Machine | tool grinders |
| 607,626 | Jul. 19, 1898 | M. Reece, administrator, F.A. Shea, Administrator, J. Reece, Estate of (deceased) | Machine for Cutting Worms | gear making machines |
| 908,142 | Dec. 29, 1908 | P.H. Root | Lawn Mower Grinder | tool grinders |
| 950,560 | Mar. 01, 1910 | P.H. Root | Lawn Mower Grinder | tool grinders |
| 956,237 | Apr. 26, 1910 | A.C. Warner | Grinding-machine | sharpening machines |
| 1,287,732 | Dec. 17, 1918 | F. Müller | Machine for Milling Knurls | embossing and knurling machines |
| 2,164,642 | Jul. 04, 1939 | J.C. Drader | Method and Means for Constructing Gear Finishing Tools | gear cutting tools |
| 2,292,875 | Aug. 11, 1942 | R.E. Flanders | Tool Carrier Control Mechanism | thread grinders |
| 2,332,421 | Oct. 19, 1943 | E. Wildhaber | Method And Machine For Relieving Cutters | metal relieving machines |
| 2,781,616 | Feb. 19, 1957 | M.R. Estabrook | Honing machine | honing machines |
| 3,335,525 | Aug. 15, 1967 | A.A. Muehling | Hydraulic system for grinding machines | |
