Number | Date | Country | Kind |
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53-34584[U] | Mar 1978 | JPX |
Number | Name | Date | Kind |
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3886504 | Hartmann et al. | May 1975 |
Entry |
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Marshall et al., "Theory and Design of the Surface Acoustic Wave Multistrip Coupler," in IEEE Trans. on Sonics and Ultrasonics, vol. SU-20, No. 2, Apr. 1973, pp. 124-133. |