Number | Name | Date | Kind |
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2521688 | Cataldo et al. | Sep 1950 | |
4133109 | Dow | Jan 1979 | |
5140751 | Faust | Aug 1992 | |
5295421 | Mansfield | Mar 1994 | |
5416882 | Hakoun et al. | May 1995 | |
5416883 | Hakoun et al. | May 1995 | |
5481638 | Roll et al. | Jan 1996 | |
5681417 | Jacobs | Oct 1997 | |
5809195 | Brown et al. | Sep 1998 | |
5893302 | Strom | Apr 1999 | |
5926598 | Klein | Jul 1999 |
Entry |
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No. 019579 Abstract of French Patent, Gerard. |
No. 019580 Abstract of French Patent, Gerard. |