| All Patents in class 451/11 |
Patents 1 -
10
of 27
      |
| Picture | Number | Date | Patentee | Title |
| | 333,478 | Dec. 29, 1885 | E.H. Parks | Grinding Machine |
 | 640,669 | Jan. 02, 1900 | A.B. Landis | Grinding-machine |
 | 654,314 | Jul. 24, 1900 | A.B. Landis | Grinding-machine |
 | 879,276 | Feb. 18, 1908 | A.B. Landis | Grinding-machine |
 | 925,867 | Jun. 22, 1909 | W.L. Bryant | Multispindle metal-grinding machine |
| | 1,877,500 | Sep. 13, 1932 | H.R. Isler, S. Einstein | Hydraulic Grinder |
| | 1,881,984 | Oct. 11, 1932 | C.E. Van Norman | Slide Mechanism for Precision Grinding Machines |
| | 1,891,777 | Dec. 20, 1932 | A.G. Plimmer | Grinding Machine |
 | 1,918,147 | Jul. 11, 1933 | B.F. Stowell | Carriage positioning mechanism for grinding machines |
| | 1,965,234 | Jul. 03, 1934 | F.S. Haas | Grinding Machine |
