Number | Name | Date | Kind |
---|---|---|---|
4041203 | Brock et al. | Aug 1977 | A |
4133624 | Heavner et al. | Jan 1979 | A |
5414867 | Bowling et al. | May 1995 | A |
5572743 | Yavitz | Nov 1996 | A |
5594955 | Sommers | Jan 1997 | A |
5680653 | Mathis et al. | Oct 1997 | A |
5693401 | Sommers et al. | Dec 1997 | A |
5802609 | Garofalo | Sep 1998 | A |
Number | Date | Country |
---|---|---|
2171289 | Aug 1986 | GB |
2245148 | Jan 1992 | GB |
Entry |
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EPO Search Report Oct. 18, 2002. |