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D258175 | Hazeltine | Feb 1981 | S |
5332305 | Slivon et al. | Jul 1994 | A |
D356703 | Dickinson | Mar 1995 | S |
5482162 | Dickinson | Jan 1996 | A |
D396578 | Zaidman | Aug 1998 | S |
5857757 | Bieker et al. | Jan 1999 | A |
RE36379 | Slivon et al. | Nov 1999 | E |
D430426 | Bieker et al. | Sep 2000 | S |
D587047 | Kalkwarf | Feb 2009 | S |