Number | Name | Date | Kind |
---|---|---|---|
2842067 | Stevens | Jul 1958 | |
3222462 | Karmann et al. | Dec 1965 | |
3931554 | Spentzas | Jan 1976 | |
4496871 | Sumita et al. | Jan 1985 | |
4558995 | Furukawa et al. | Dec 1985 | |
4595338 | Kolm et al. | Jun 1986 | |
4625137 | Tomono | Nov 1986 | |
4629926 | Siegal | Dec 1986 |
Number | Date | Country |
---|---|---|
43226 | Mar 1980 | JPX |
969160 | Sep 1964 | GBX |
806896 | Mar 1981 | SUX |
Entry |
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Aronson, "Discovering Piezoelectrics", Machine Design, Jun. 21, 1984, pp. 73-77. |