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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 7237821 | Stroller with playing tool A stroller includes a playing tool main body coupled on a guard bar, a playing tool coupled on a plurality of rotational shaft installed in the main body, a cover formed to be transparent and protecting the playing tool, a driving motor installed in the main body an... | 07/03/2007 |
