Number | Date | Country | Kind |
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6-23170 | Jul 1994 | JPX |
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D161790 | Sappington | Jan 1951 | |
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D279497 | Brown | Jul 1985 | |
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D300444 | Antonious | Mar 1989 | |
D318702 | Igaeashi | Jul 1991 | |
D360444 | Takahashi et al. | Jul 1995 |