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| Patents for Norbert C. Kolell | |||||
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| Picture | Number | Date | Patentee | Title | |
| 3,490,017 | Jan. 13, 1970 | T.B. Bullock, N.C. Kolell | Numerical Control Systems Employing Conversion of Changing Command Numbers Into Phase Analog Signals | ||
| 3,842,330 | Oct. 15, 1974 | N.C. Kolell | Method and Apparatus for Numerical Control of Members Independently Movable Along Coincident Axes | ||
| 4,041,287 | Aug. 09, 1977 | J.P. Conners, N.C. Kolell | Final Servo Control in NC Systems | ||