Number | Name | Date | Kind |
---|---|---|---|
4543959 | Sepponen | Oct 1985 | |
4545387 | Balique | Oct 1985 | |
4587972 | Morantle, Jr. | May 1986 | |
5050610 | Oaks et al. | Sep 1991 | |
5088497 | Ikeda | Feb 1992 | |
5103825 | Hokanson et al. | Apr 1992 |
Entry |
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Hitachi Sales Brochure, excerpt from Cardio, Nov. 1990. |
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