Number | Name | Date | Kind |
---|---|---|---|
4328267 | Matsuo et al. | May 1982 | |
4525377 | Nickel et al. | Jun 1985 | |
4620996 | Yashiki | Nov 1986 | |
4767472 | Vanneste | Aug 1988 | |
4964366 | Kurokawa et al. | Oct 1990 | |
5334246 | Pietrzykowski, Jr. et al. | Aug 1994 | |
5385759 | Crump et al. | Jan 1995 | |
5429842 | Appel et al. | Jul 1995 | |
5578410 | Petropoulos et al. | Nov 1996 |