| All Patents in class 409/231 |
Patents 16 -
30
of 49
      |
| Number | Date | Patentee | Title | Type |
| 2,065,173 | Dec. 22, 1936 | F.M. Davis | Milling machine spindle mounting | metalworking machine mechanisms |
| 2,072,646 | Mar. 02, 1937 | W.F. Ocenasek | Drill press spindle drive and mounting | drill presses |
| 2,115,058 | Apr. 26, 1938 | J.B. Armitage | Milling Machine | milling machines |
| 2,192,856 | Mar. 05, 1940 | L.F. Nenninger | Spindle Construction | metalworking machine mechanisms |
| 2,286,292 | Jun. 16, 1942 | A.W. Mall | Spindle assembly | |
| 2,499,193 | Feb. 28, 1950 | E. Lochman | Dual spindle machine tool | |
| 2,643,441 | Jun. 30, 1953 | K.F. Gallimore | Machine Tool | horizontal boring mills |
| 2,755,117 | Jul. 17, 1956 | J.B. Armitage | Machine Tool Spindles | milling machines |
| 2,921,490 | Jan. 19, 1960 | L. Kipp | Means for Cutting Threads | lathe tool holders and tool posts |
| 2,958,794 | Nov. 01, 1960 | T.C. Mann | Variable speed cutter drive | routing machines |
| 3,211,060 | Oct. 12, 1965 | W.l. McCann | Spindle Bearing Preload Assembly | metalworking machine bearings |
| 3,221,605 | Dec. 07, 1965 | J.V. Hemmerle, Jr. | Thermal Change Compensation Mechanism | metalworking machine mechanisms |
| 3,222,956 | Dec. 14, 1965 | L.A. Attermeyer, L.A. Dever | Machine Tool Spindle Mechanism | vertical boring mills |
| 3,222,991 | Dec. 14, 1965 | K.F. Bone | Bearing Preload Mechanism for Machine Tool | metalworking machine bearings |
| 3,244,028 | Apr. 05, 1966 | L.A. Attermeyer, L.A. Dever | Spindle Clamping Mechanism | metalworking machine mechanisms |
