| Patents for Giddings & Lewis Machine Tool Co. |
Patents 181 -
189
of 189
      |
| Number | Date | Patentee | Title | Type |
| 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 | nc and cnc apparatus |
| 3,543,445 | Dec. 01, 1970 | J.R. Southland, E. Borchert, III | Apparatus for grinding drills | drill grinders |
| 3,546,570 | Dec. 08, 1970 | T.B. Bullock | Method for Driving Controlled Currents Through the Stator Windings of a Position Measuring Transformer | transformers |
| 3,600,692 | Aug. 17, 1971 | J.K. McGee | Phase Comparator Providing DC Output as a Function of Variable Phase Between Two Inputs | electronic circuitry and apparatus |
| 3,648,244 | Mar. 07, 1972 | J.K. McGee | Readout System for Selective Display of Digital Data on Time Shared Conductors | computer apparatus and systems |
| 4,041,287 | Aug. 09, 1977 | J.P. Conners, N.C. Kolell | Final Servo Control in NC Systems | electronic circuitry and apparatus |
| 4,167,808 | Sep. 18, 1979 | R.D. Moriarty | Harness for Electromagnetic Transducer | metalworking machine mechanisms |
| 4,182,979 | Jan. 08, 1980 | W.P. Jezo, R.L. Douglas | D. C. Electric Torquing System | electronic circuitry and apparatus |
| 5,086,910 | Feb. 11, 1992 | P.D. Terpstra | Zone Controlled Conveyance System | workpiece changers and storage mechanisms |
