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| Patents for Carl E. Linden | |||||
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| Number | Date | Patentee | Title | Type | |
| 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 | F.O. Wetzel, R.N. Knosp, C.E. Linden | Radial drill spindle feed | radial drill presses | |