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4775937 | Bell | Oct 1988 | A |
5003595 | Collins et al. | Mar 1991 | A |
5058152 | Solomon et al. | Oct 1991 | A |
5083272 | Walker et al. | Jan 1992 | A |
5119295 | Kapur | Jun 1992 | A |
5618232 | Martin | Apr 1997 | A |
5672106 | Oxford et al. | Sep 1997 | A |
5830069 | Soltesz et al. | Nov 1998 | A |
5873782 | Hall | Feb 1999 | A |
5921865 | Scagnelli et al. | Jul 1999 | A |
6058250 | Harwood et al. | May 2000 | A |
6104815 | Alcorn et al. | Aug 2000 | A |
Number | Date | Country |
---|---|---|
2 121 569 | Dec 1983 | GB |
WO 98 30297 | Jul 1998 | WO |
Entry |
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