Number | Name | Date | Kind |
---|---|---|---|
4946560 | Slaugh et al. | Aug 1990 | A |
6018089 | Slaugh et al. | Jan 2000 | A |
6184431 | Slaugh et al. | Feb 2001 | B1 |
6271434 | Slaugh et al. | Aug 2001 | B1 |
Entry |
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U.S. patent application Ser. No. 10/325,340, Slaugh et al., filed Dec. 19, 2002. |