Number | Name | Date | Kind |
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3851280 | Staples | Nov 1974 | |
3942135 | Moor et al. | Mar 1976 |
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Reeder et al., "Convolution and Correlation by Nonlinear Interaction in a Diode-Coupled Tapped Delay Line" Appl. Phys. Lett., Jan., 1973; pp. 8-10. |
Hunsinger et al., "Programmable Surface-Wave Tapped Delay Line" IEEE Trans. on Sonics and Ultrasonics, July 1971; pp. 152-154. |