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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 |
| 4229056 | Bearings (bearing thrust lubrication) A bearing having a lubricant reservoir and a thrust load face wherein a lubricant transfer device is provided to transfer lubricant from the reservoir to the area of the thrust load face.... | 10/21/1980 |
| 4184722 | Bearing brass for the journal bearings of rail vehicles A bearing brass for the journal bearings of rail vehicles, where the bearing brass is in the form of a part-circular segmental bearing member and is arranged in a journal bearing box above the axle. The journal bearing box retains underneath the axle a lu... | 01/22/1980 |
