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4719477 | Hess | Jan 1988 | A |
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5317346 | Garcia | May 1994 | A |
5469199 | Allen et al. | Nov 1995 | A |
5508724 | Boyd et al. | Apr 1996 | A |
5598189 | Hess et al. | Jan 1997 | A |
5600349 | Keefe | Feb 1997 | A |
5608431 | Kishida et al. | Mar 1997 | A |
5635968 | Bhaskar et al. | Jun 1997 | A |
5638101 | Keefe et al. | Jun 1997 | A |
5644342 | Argyres | Jul 1997 | A |
Number | Date | Country |
---|---|---|
0592221 | Apr 1994 | EP |
0913255 | May 1999 | EP |
WO9851509 | Nov 1998 | WO |
Entry |
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European Search Report, Jul. 4, 2001, Application No. 00306398. |