Number | Name | Date | Kind |
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4581429 | Solomon et al. | Apr 1986 | |
4962163 | Hefner, Jr. et al. | Oct 1990 | |
5134213 | Kawaguchi | Jul 1992 | |
5196491 | Cho et al. | Mar 1993 | |
5214105 | Frechet | May 1993 |
Entry |
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D. Jungbauer et al. (1990) Appl. Phys. Lett 56, 2610-2612. |