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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| Number | Title | Issue Date |
| 5753868 | Method and apparatus for gravimetric dosing and mixing of at least two components The present invention relates to a method and an apparatus for gravimetric dosing and mixing of at least two components (K1, K2), wherein the parts by weight of the components (K1, K2) are calculated by weighing and both components (K1, K2) are mixed toge... | 05/19/1998 |