| All Patents in class 82/902 |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 675,469 | Jun. 04, 1901 | H. Derrer | Lathe for turning irregular forms |
| | 1,025,152 | May 07, 1912 | P.S. Mitts | Oil Groove Cutting Attachment for Key Seating Machines |
| | 1,343,554 | Jun. 15, 1920 | W.F. Fischer | Machine for Forming Grooves |
 | 1,675,136 | Jun. 26, 1928 | E.P. Sacrey | Machine for Cutting Oil Grooves |
| | 1,982,983 | Dec. 04, 1934 | F. Czemba | Scroll Cutting Machine |
| | 2,521,619 | Sep. 05, 1950 | H.H. Weld | Grooving or Necking Mechanism |
| | 3,386,317 | Jun. 04, 1968 | R.C. Greathouse, C.N. Flick | Bore Machining Mechanism |
