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| All Patents in class 700/69 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,491,277 | Jan. 20, 1970 | W.E. Brainard | Thermal Compensation System for Position Transducers | metalworking machine mechanisms | |
| 3,798,430 | Mar. 19, 1974 | T.B. Bullock, J.B. Simon | Reduction of Servo Following Errors in Position and Velocity Control Systems of the Iteratively Computing Type | nc and cnc apparatus | |