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| All Patents in class 318/634 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,289,061 | Nov. 29, 1966 | M.F. Stratman | Lead Screw Compensator | machine tool controls | |
| 3,491,277 | Jan. 20, 1970 | W.E. Brainard | Thermal Compensation System for Position Transducers | metalworking machine mechanisms | |