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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Application No. | Application Title | Issue Date |
| 20080011495 | Ground working implement The invention relates to a ground working implement, particularly for underground working, having a slide displaceable relative to a base by means of a lifting cylinder arrangement. It is on the one hand connected to the slide and on the other to the base and has two op... | 01/17/2008 |
