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| All Patents in class 318/663 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 2,228,902 | Jan. 14, 1941 | A. Allen | Automatically Controlled Machine Tool and Follow-Up System | ||
| 2,741,732 | Apr. 10, 1956 | F.W. Cunningham | Motor Control System for Automatic Machine Tools | ||
| 3,432,744 | Mar. 11, 1969 | L.J. Lauler, M.T. Thorsson | Control Circuits for Card Operated Batcher | ||
| 3,444,446 | May 13, 1969 | S. Lenders, F.G. Burg | Fine-medium-coarse servomotor position control | ||