Number | Name | Date | Kind |
---|---|---|---|
3101650 | Blanton | Aug 1963 | |
3135294 | Huber | Jun 1964 | |
3964518 | Hesse et al. | Jun 1976 | |
4011891 | Knutson et al. | Mar 1977 | |
4023593 | Piccardo | May 1977 |
Entry |
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Kinney et al., "What You Can Get in Electrohydraulic Servo Valves", Applied Hydraulics and Pneumatics, Feb. 1959, pp. 67 and 74. |