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4789881 | Alphonse | Dec 1988 | A |
4958355 | Alphonse et al. | Sep 1990 | A |
5166948 | Gavrilovic et al. | Nov 1992 | A |
5182759 | Anthon | Jan 1993 | A |
5191586 | Huber | Mar 1993 | A |
5436919 | Chwalek | Jul 1995 | A |
5486947 | Ohishi et al. | Jan 1996 | A |
5621749 | Baney | Apr 1997 | A |
5684621 | Downing | Nov 1997 | A |
5930029 | Mehuys | Jul 1999 | A |
Entry |
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International Search Report for International (PCT) Application No. PCT/US99/28224 dated Apr. 18, 2000. |