| All Patents in class 451/405 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 162,698 | Apr. 27, 1875 | L. Uilting, J. Schneider | Improvement in machines for shaping tobacco-pipe bowls | specialty woodworking machines |
| 248,744 | Oct. 25, 1881 | B. Holmes | Machine for grinding steel bars | grinders |
| 364,353 | Jun. 07, 1887 | R. Kampfe | Machinery for Grinding Cutlery | glass grinding machines |
| 895,093 | Aug. 04, 1908 | W.B. Knight | Work-support for Milling and Drilling Machines | milling machine accessories |
| 956,350 | Apr. 26, 1910 | J.E. Hillstrom | Scraper-sharpener | sharpening machines |
| 1,059,055 | Apr. 15, 1913 | A. Lindquist | Belt-sanding machine | belt sanders |
| 1,143,691 | Jun. 22, 1915 | A.L. De Leeuw | Grinder Structure | tool grinders |
| 1,155,987 | Oct. 05, 1915 | J.R. Beckett | Universal Angle Plate | angle bars and angle plates |
| 1,282,037 | Oct. 22, 1918 | L.W. Bugbee | Grinding Machine | |
| 1,343,751 | Jun. 15, 1920 | F.L. Simmons | Adjustable V-Block and the Like for Magnetic Chucks | V blocks |
| 1,363,222 | Dec. 28, 1920 | J.R. Beckett | Angle Plate | angle bars and angle plates |
| 1,414,970 | May 02, 1922 | A.W. Nelson | Adjustable angle plate | angle bars and angle plates |
| 2,738,625 | Mar. 20, 1956 | J.J. Strnad | Grinding machine | gasket surface maintenance |
| 3,861,088 | Jan. 21, 1975 | R.F. Brieco | Fixture for Supporting a Tool Subject to Grinding Including Accurately Positionable Tilting Angle Plate | grinding fixtures |
| 4,669,227 | Jun. 02, 1987 | B.C. Treppner | Angle Plate Apparatus With Precisely Adjustable Workpiece Holder | angle bars and angle plates |
