| All Patents in class 451/24 |
Patents 1 -
10
of 34
      |
| Picture | Number | Date | Patentee | Title |
 | 148,161 | Mar. 03, 1874 | G. Ames | Improvement in machines for removing bark from logs of wood |
 | 1,182,879 | May 09, 1916 | S.H. Whitten | Pulp-grinding machines |
| | 1,840,231 | Jan. 05, 1932 | F.S. Haas, R.E. Harrison | Grinding Machine |
| | 1,942,414 | Jan. 09, 1934 | L.A. Dumser, P.S. Jackson | Actuating means for machine tools |
 | 1,949,511 | Mar. 06, 1934 | C.G. Flygare | Grinding machine table operating mechanism |
 | 1,949,516 | Mar. 06, 1934 | C.H. Norton | Hydraulic wheel feeding mechanism |
| | 1,961,089 | May 29, 1934 | A. Schinkez, E.R. Smith | Speed Coordinating Mechanism for Machine Tools |
| | 1,969,063 | Aug. 07, 1934 | H.R. Isler, H. Ernst | Grinding Machine |
| | 1,978,181 | Oct. 23, 1934 | J.R. Whittles | Hydraulically driven surface grinding machine |
 | 2,000,553 | May 07, 1935 | C.R. Alden | Machine tool |
