Number | Name | Date | Kind |
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3561549 | Garirison | Feb 1971 | A |
3626482 | Quichaud et al. | Dec 1971 | A |
4220213 | Hamilton | Sep 1980 | A |
4394881 | Shirley | Jul 1983 | A |
4638873 | Welborn | Jan 1987 | A |
4697650 | Fontenot | Oct 1987 | A |
5220963 | Patton | Jun 1993 | A |
5358059 | Ho | Oct 1994 | A |
5439064 | Patton | Aug 1995 | A |
5484029 | Eddison | Jan 1996 | A |
5979570 | McLoughlin et al. | Nov 1999 | A |
Number | Date | Country |
---|---|---|
0674093 | Mar 1995 | EP |
2356207 | Nov 1999 | GB |
WO 9631679 | Oct 1996 | WO |
WO9747848 | Dec 1997 | WO |
WO0065198 | Nov 2000 | WO |
Entry |
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International Search Report PCT/GB02/02784. |