Number | Name | Date | Kind |
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2951312 | Engh | Sep 1960 | A |
D194109 | Dilley | Nov 1962 | S |
D249087 | Simmons | Aug 1978 | S |
D266809 | Rodriguez | Nov 1982 | S |
D281917 | Myers et al. | Dec 1985 | S |
D283714 | Petroulias | May 1986 | S |
D350692 | Seki | Sep 1994 | S |
6314912 | Armbruster | Nov 2001 | B1 |
D520564 | Hsieh | May 2006 | S |
D521778 | Edwards | May 2006 | S |