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| Number | Date | Country | Kind |
|---|---|---|---|
| 2020-024507 D | Nov 2020 | JP | national |
| 2020-024508 D | Nov 2020 | JP | national |
| 2020-024509 D | Nov 2020 | JP | national |
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| 2627767 | Batchelder | Feb 1953 | A |
| 2669139 | Finch | Feb 1954 | A |
| 2992573 | Prutton | Jul 1961 | A |
| D480619 | Koenig, Jr. | Oct 2003 | S |
| Number | Date | Country |
|---|---|---|
| 2391467 | Mar 2013 | EP |
| 2022014924 | Jan 2022 | JP |
| 2087237 | Aug 1997 | RU |