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 |
| 5542164 | Method for forming a barb on a tip of a fishhook A method for forming a barb of a fishhook including the steps of pressing a thin flat portion of the tip and either cutting or chipping a part of the barb to form a rear face on a side opposite the tip of the hook. At least either upper or lower lateral s... | 08/06/1996 |
| 5163245 | Fish hook construction An improvement to conventional fish hook units (11) comprising a J-shaped shank member (20) having a sharpened point (22) formed on one end; wherein the improvement comprises a discrete auxiliary barb member (30) having one portion (31) captively engaged ... | 11/17/1992 |