| All Patents in class 279/128 |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 733,126 | Jul. 07, 1903 | C.F. Bellows | Tool Holder | tool holders |
| 932,709 | Aug. 31, 1909 | H.S. Johnson | Chuck | metal lathe chucks |
| 1,213,167 | Jan. 23, 1917 | A.M. Drake | Magnetic chuck and casing | magnetic chucks |
| 2,209,558 | Jul. 30, 1940 | O. Block, J. Bing | Magnetic clamping appliance | surface gauges |
| 2,561,769 | Jul. 24, 1951 | A. Anderson | Magnetic chuck | |
| 2,561,770 | Jul. 24, 1951 | A. Anderson | Magnetic chuck | |
| 2,609,430 | Sep. 02, 1952 | W.L. Bower | Magnetic Work Holder | chucks |
| 2,819,905 | Jan. 14, 1958 | C. Stead | Rotary Magnetic Work Holders | magnetic chucks |
| 2,864,622 | Dec. 16, 1958 | W.B. Seidel | Magnetic Work Chuck | magnetic chucks |
| 3,078,565 | Feb. 26, 1963 | J.A. Sanders | Magnetic chuck adapter plate | magnetic chuck accessories |
| 3,176,439 | Apr. 06, 1965 | R.G. Gabriel, J.R. Lemon | Machine Tool Workpiece Support | hydraulic apparatus |
| 3,284,959 | Nov. 15, 1966 | W.B. Seidel | Multi-Station Grinding Machine | cylindrical grinders |
| 3,893,676 | Jul. 08, 1975 | L.J. Gloshinski | Magnetic Chuck | magnetic chucks |
| 3,989,077 | Nov. 02, 1976 | M. Humbert | Rotary Cutter | insert tool holders |
