Number | Name | Date | Kind |
---|---|---|---|
4430406 | Newkirk et al. | Feb 1984 | |
4807341 | Nielsen et al. | Feb 1989 | |
5200284 | Chen et al. | Apr 1993 | |
5233008 | Chen et al. | Aug 1993 | |
5330840 | Chen et al. | Jul 1994 | |
5464698 | Chen et al. | Nov 1995 | |
5534347 | Chen et al. | Jul 1996 |
Entry |
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