| All Patents in class 451/440 |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
 | 39,465 | Aug. 11, 1863 | D. Cheney, S.S. Cheney | Lathe for Turning Locomotive Crank Pins |
| | 1,259,130 | Mar. 12, 1918 | E. Ritz, Jr. | Internal and External Grinder |
 | 1,391,039 | Sep. 20, 1921 | C.H. Beach | Electric Grinder |
| | 1,395,880 | Nov. 01, 1921 | D.W. Ward | Commutator Brush Reseating Tool |
| | 1,445,857 | Feb. 20, 1923 | W.N. Stevens | Cylinder Grinding Machine |
| | 1,527,098 | Feb. 17, 1925 | A. White | Grinding-machine bearing |
| | 1,538,317 | May 19, 1925 | F.T. Flinchbaugh | Portable Reboring Machine for Engine Cylinders |
 | 1,577,478 | Mar. 23, 1926 | L.C. Marburg | Cylinder-grinding attachment |
| | 1,733,578 | Oct. 29, 1929 | F.E. Burke | Brake drum truing tool |
 | 1,957,485 | May 08, 1934 | H.W. Zimmerman | Cylinder grinding tool adjusting mechanism |
