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 |
| 5992435 | Stake assembly A stake assembly includes a spike having a first end and a second end defining a longitudinal axis of the stake. A flange is connected at the second end of the spike and extends laterally therefrom, the upper surface of the flange forming the axially and ... | 11/30/1999 |
| 5215037 | Bicycle-mounted swingarm device for exercising a dog A bicycle-mounted exercising device includes a mounting assembly attachable to a bicycle frame, an elongated swingarm having an inner end and an outer end for coupling to a flexible elastic strap attachable to a dog's collar, a pivot assembly connecting t... | 06/01/1993 |
| 4738222 | Animal tether An animal tether comprising a base plate, a ground stake which extends through the base plate at about a 90° angel, the upper end of the ground stake projecting beyond the upper surface of the base plate and the lower end of the stake adapted to project ... | 04/19/1988 |
| 4197818 | Pet walker A colorful stake to which a leash of a dog or other pet can be tethered so as not to run off; the stake including a metal prong for insertion into a ground, a flat plate freely pivotable around an above-ground portion of the prong, the plate being imprint... | 04/15/1980 |