Number | Name | Date | Kind |
---|---|---|---|
3644066 | Heob et al. | Feb 1972 | |
3961864 | Papst et al. | Jun 1976 | |
4549104 | Niimura | Oct 1985 | |
4554491 | Plunkett | Nov 1985 | |
4588914 | Heyne | May 1986 | |
4659951 | Angi et al. | Apr 1987 | |
4663549 | Suzuki | May 1987 | |
4734606 | Hajec | Mar 1988 | |
4868434 | Hayashi | Sep 1989 |
Entry |
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