| All Patents in class 451/332 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 1,264,928 | May 07, 1918 | L.R. Heim | Device for Feeding Rolls for End Grinding | |
| 1,415,530 | May 09, 1922 | F.M. Davis | Feeding and clamping means for metal-working machines | metalworking machine mechanisms |
| 1,576,820 | Mar. 16, 1926 | F.E. Gardner | Grinding machine | disk sanders |
| 1,599,374 | Sep. 07, 1926 | H.F. Skillings | Grinding Machine | surface grinders |
| 1,628,618 | May 10, 1927 | H.K. Spencer | Means For Handling Articles | grinding attachments |
| 1,991,712 | Feb. 19, 1935 | F.J. Theler | Grinding Machine | grinding machines |
| 2,252,594 | Aug. 12, 1941 | G.A. Carlson | Rotary work holding machine | polishing and buffing machinery |
| 2,706,369 | Apr. 19, 1955 | E.L. Dix | Centerless grinding machine with loading and unloading mechanism | grinders |
