| http://www.w3.org/ns/prov#value | - 15, 1971Silverman Jack JSandal for foot castUS4112599 *Jul 1, 1977Sep 12, 1978Jacob KrippelzMethod of cushioning and ventilating a foot, and footwear including disposable slippers and insoles for practicing such methodUS4168585 *Apr 10, 1978Sep 25, 1979Gleichner Eleanor RHeel cushionUS4370818 *Dec 15, 1980Feb 1, 1983Arthur SimoglouProtective footwearUS4530173 *Jul 5, 1983Jul 23, 1985Jesinsky Jr E
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