| All Patents in class 451/405 |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
 | 162,698 | Apr. 27, 1875 | J. Schneider, L. Uilting | Improvement in machines for shaping tobacco-pipe bowls |
 | 248,744 | Oct. 25, 1881 | B. Holmes | Machine for grinding steel bars |
| | 364,353 | Jun. 07, 1887 | R. Kampfe | Machinery for Grinding Cutlery |
| | 895,093 | Aug. 04, 1908 | W.B. Knight | Work-support for Milling and Drilling Machines |
| | 956,350 | Apr. 26, 1910 | J.E. Hillstrom | Scraper-sharpener |
 | 1,059,055 | Apr. 15, 1913 | A. Lindquist | Belt-sanding machine |
| | 1,143,691 | Jun. 22, 1915 | A.L. De Leeuw | Grinder Structure |
| | 1,155,987 | Oct. 05, 1915 | J.R. Beckett | Universal Angle Plate |
| | 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 |
