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 |
| 4662104 | Method and apparatus for administering acaricides and insecticides to ectoparasites of rodents Insecticide is administered to ectoparasites of rodents by filling a container with insecticide-impregnated fibrous nesting material and fixing it in a desired location. The container has an aperture permitting entry by rodents. Rodents incorporate the in... | 05/05/1987 |