| All Patents in class 451/127 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 399,344 | Mar. 12, 1889 | J.M. Petersen | Machine for fitting the ends of band-saws | bandsaw accessories |
| 409,337 | Aug. 20, 1889 | E.B. Rich | Machine for grinding knives and saws | sharpening machines |
| 523,882 | Jul. 31, 1894 | M. Covel | Saw Dressing Machine | saw sharpening tools |
| 1,130,454 | Mar. 02, 1915 | J. Wegner | Shaping Machine | |
| 1,364,324 | Jan. 04, 1921 | J. Siakel | Sandpapering-machine | belt sanders |
| 1,989,792 | Feb. 05, 1935 | J.C. Drader | Automatic Machine Tool | tool grinders |
| 2,111,271 | Mar. 15, 1938 | L.F. Nenninger | Apparatus for Lapping | lapping machines |
| 2,741,070 | Apr. 10, 1956 | A.A. Muehling | Swing grinder | |
| 2,750,714 | Jun. 19, 1956 | A.A. Muehling | Swing grinder | |
| 3,245,176 | Apr. 12, 1966 | A.A. Muehling | Grinding machine | |
| 3,335,525 | Aug. 15, 1967 | A.A. Muehling | Hydraulic system for grinding machines | |
| 4,428,158 | Jan. 31, 1984 | J.J. Fatula, Sr. | Method and apparatus for grinding irregular surfaces | grinders |
