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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 |
| 7380430 | Rotary draw tube bender The invention is a rotary draw bending machine and process for bending materials such as tubes or pipes into precise bends. A spindle holds a bending die, and a radial arm holds a counter-die. The spindle and arm are simultaneously rotated in opposite directions by ... | 06/03/2008 |
| 5582060 | Forging machine A forging machine has four rams arranged at 90° to one another in a cruciform manner in one plane; these act radially upon the workpiece, guided longitudinally in the system axis, and are equipped with tools. In order that the tools may form a closed pas... | 12/10/1996 |
