| Patents for Frank O. Wetzel |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 2,536,006 | Dec. 26, 1950 | F.O. Wetzel, C.E. Linden | Interlocked control for the clamps and spindle of a radial drill or the like | radial drill presses |
| 2,590,629 | Mar. 25, 1952 | F.O. Wetzel, C.E. Linden | Tool ejector | radial drill presses |
| 2,600,779 | Jun. 17, 1952 | R.N. Knosp, C.E. Linden, F.O. Wetzel | Control mechanism for tapping machines | tapping machines |
| 2,618,180 | Nov. 18, 1952 | C.E. Linden, F.O. Wetzel | Tool ejector | radial drill presses |
| 2,699,078 | Jan. 11, 1955 | R.N. Knosp, C.E. Linden, F.O. Wetzel | Machine tool clamping mechanism | radial drill presses |
| 2,722,853 | Nov. 08, 1955 | R.N. Knosp, C.E. Linden, F.O. Wetzel | Work positioning for a jig boring machine | drill presses |
| 2,762,243 | Sep. 11, 1956 | F.O. Wetzel, C.E. Linden, R.N. Knosp | Machine Tool Clamping Mechanism | metalworking machine mechanisms |
| 2,882,761 | Apr. 21, 1959 | R.N. Knosp, C.E. Linden, F.O. Wetzel | Radial drill spindle feed | radial drill presses |
