| All Patents in class 451/259 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 12,820 | May 08, 1855 | B. Hardinge | Facing Bed for Grinding Artificial Granite, Etc. | stone dressing machines |
| 417,615 | Dec. 17, 1889 | A. Webster | Machine for Grinding Lathe Beds | surface grinders |
| 1,100,722 | Jun. 23, 1914 | B.L. Fry | Grinder | |
| 1,244,584 | Oct. 30, 1917 | R.L. Carter | Disk grinder | sanding machines |
| 1,405,922 | Feb. 07, 1922 | C. Knowles | Wheel Guard for Grinding Machines | grinding attachments |
| 1,452,209 | Apr. 17, 1923 | J. Miller, Jr. | Disk grinder | sanding machines |
| 1,548,562 | Aug. 04, 1925 | H.K. Spencer | Means For And Method Of Handling Work Pieces | magnetic chucks |
| 2,175,057 | Oct. 03, 1939 | B.A. Kearns | Spindle Reciprocating Mechanism for Grinding Machines | grinding machines |
| 2,374,716 | May 01, 1945 | C.A. Wiken | Grinder | cutter grinding |
| D161,484 | Jan. 02, 1951 | C.Y. McQuown | Polishing machine | sanding machines |
| 3,243,921 | Apr. 05, 1966 | D.E. Sutton | Mounting duplex tables on two rods | |
| 5,879,504 | Mar. 09, 1999 | P.M. Winter | Portable Apparatus for Removing Heat Softenable Surface Coverings | handheld power tool accessories |
