Number | Date | Country | Kind |
---|---|---|---|
4025129 | Aug 1990 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4739212 | Imasaka et al. | Apr 1988 | |
4755705 | Holum | Jul 1988 | |
4771203 | Mukohjima et al. | Sep 1988 | |
4924852 | Suzuki et al. | May 1990 | |
4983874 | Yamaguchi | Jan 1991 | |
4989277 | Tsutsui et al. | Feb 1991 | |
5049774 | Kuwabara et al. | Sep 1991 |
Number | Date | Country |
---|---|---|
3809909 | Oct 1989 | DEX |
Entry |
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Traveling Wave Ultrasonic Motors Offer, by Y. Ise JEE, Jun. 1986, pp. 66-70. |