| All Patents in class 407/102 |
Patents 31 -
36
of 36
      |
| Number | Date | Patentee | Title | Type |
| 2,536,279 | Jan. 02, 1951 | O.R. Grube | Holder for Grinding Lathe Tool Bits | sharpening tool holders |
| 2,649,818 | Aug. 25, 1953 | E.J. Kaiser | Metal Cutting Tool | insert tool holders |
| 2,669,149 | Feb. 16, 1954 | G.L. Preston, E.A. Watson | Tool Holding Block | lathe tool holders and tool posts |
| 2,753,617 | Jul. 10, 1956 | W. Felenchak | Adjustable Centering Spring Threading Tool Holder | lathe tool holders and tool posts |
| 2,893,110 | Jul. 07, 1959 | S.H. Gibson | Wheel Machining Tool Holder | metalworking machine tool holders |
| 3,059,316 | Oct. 23, 1962 | W. Bader | Tool Holder | insert tool holders |
