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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 |
| 20090194473 | PIPE STAND Pipe stands support waste-conveying pipes in a trench in a septic system. The pipe stands are preferably flat bowtie-shaped sheets (preferably polymeric). Holes or notches are formed that align when the sheet is folded, thus providing stable support for a horizontal pip... | 08/06/2009 |
| 20090050225 | System for Piping Under Roadways What is disclosed is an improved system for gas piping under roadways using polyethylene pipe (2) as a casing pipe around an inner carrier pipe (1), along with a method for testing airtightness. A conduit (10) for the tracer wire (9) is inclu... | 02/26/2009 |
| 20080023092 | Method For Designing And Implementing Improved Longitudinal Flexibility Multilayered Pipeline The present invention provides a new method for designing a multi layered pipe highly resilient to longitudinal bending, wherein the layer pipe includes an inner pipe, an outer pipe, and a separating layer. According to one embodiment the method includes the following o... | 01/31/2008 |
| 20050005985 | Underdrainage pipe The underdrainage pipe includes an inner layer 1 formed by helically winding strands 2, 3, and an outer layer 4 also formed by helically winding a strand 5. In the strand 5 in one of the inner and outer layers 1, 4, for example,... | 01/13/2005 |
