| All Patents in class 408/153 |
Patents 16 -
30
of 40
      |
| Number | Date | Patentee | Title | Type |
| 1,724,497 | Aug. 13, 1929 | G.M. Mehl | Threading die | pipe threading machines |
| 1,953,529 | Apr. 03, 1934 | R.R. Finn, E.T. Bysshe | Automatic Die | taps and dies |
| 2,105,757 | Jan. 18, 1938 | B.F. Rosenberg | Boring Tool | drilling and boring tool holders |
| 2,459,416 | Jan. 18, 1949 | A.H. Davis | Adapter for boring bars | boring bars |
| 2,490,117 | Dec. 06, 1949 | A.H. Davis | Adjustable boring bar | boring bars |
| 2,537,517 | Jan. 09, 1951 | C.B. De Vlieg | Metal cutting tool | boring bars |
| 2,649,818 | Aug. 25, 1953 | E.J. Kaiser | Metal Cutting Tool | insert tool holders |
| 2,793,547 | May 28, 1957 | M.L. Benjamin, F.E. Winnen | Adjustable bit boring bar | facing heads |
| 2,878,695 | Mar. 24, 1959 | T.J. Busch | Tool Holder for Boring Bars | drilling and boring tool holders |
| 2,901,935 | Sep. 01, 1959 | A.P. Keller, Jr., I.C. Simon | Facing heads | facing heads |
| 2,954,570 | Oct. 04, 1960 | A. Couch | Holder for Plural Thread Chasing Tools Including Tool Clamping Block With Lubrication Passageway | metalworking machine tool holders |
| 3,094,016 | Jun. 18, 1963 | A. Roggenber, W.K. Kleine | Trepanning and Boring Head | boring heads |
| 3,217,569 | Nov. 16, 1965 | A.N. Sweeny | Metal cutting tool | boring bars |
| 3,220,287 | Nov. 30, 1965 | L.E. Alvey | Precision Boring Bar | |
| 3,232,144 | Feb. 01, 1966 | A.N. Sweeny | Adjustable tool holder | milling machine cutters |
