Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Application No. | Application Title | Issue Date |
| 20100115714 | Retractable ramp system A retractable ramp system mounts a slideable ramp between lateral rail members which extend the length of a truck chassis and a container mounted thereon. The ramp is slideably suspended from a guide rail running parallel to the lateral rail members by means of a carria... | 05/13/2010 |