Number | Name | Date | Kind |
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D369286 | Tachman | Apr 1996 | |
D382781 | Shaw et al. | Aug 1997 | |
1471353 | Pihl | Oct 1923 | |
2718801 | Finley | Sep 1955 | |
3037408 | Rives et al. | Jun 1962 | |
3186263 | Grote | Jun 1965 | |
3656793 | Mathews | Apr 1972 | |
4033205 | Hoskins | Jul 1977 | |
4469235 | Parker | Sep 1984 | |
4786062 | Schneider | Nov 1988 | |
4836065 | Setliff | Jun 1989 | |
4846025 | Keller | Jul 1989 |