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All Patents in class 318/684 | |||||
Number | Date | Patentee | Title | Type | |
2,882,476 | Apr. 14, 1959 | T.A. Wetzel | Motor Control System | milling machines | |
3,258,667 | Jun. 28, 1966 | J. Steranka, Jr., J.O. McDonough | Phase Shift Decoder for a Servo Control | electronic circuitry and apparatus |