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D282001 | Muchenberger | Dec 1985 | |
D335341 | O'Grady | May 1993 | |
D355248 | Wang et al. | Feb 1995 | |
D364676 | Chiu et al. | Nov 1995 | |
D369654 | Chiu et al. | May 1996 | |
2843891 | Fisher | Jul 1958 | |
3321196 | Weatherston | May 1967 | |
3605385 | Stoop | Sep 1971 | |
4749389 | Worwag | Jun 1988 | |
5215685 | Marino | Jun 1993 | |
5384888 | Peng | Jan 1995 | |
5514303 | Chiu et al. | May 1996 |