Assertion: artificial heart | /r/HasProperty | produced
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text: After Dr. Robert Jarvik was repeatedly--and erroneously--referred to as, "The inventor of the artificial heart," Dr. Heimlich made a television talk show appearance alongside Paul Winchell to confirm, not only the story of Winchell's early work and patent of his artificial heart device, but also to verify the fact that Winchell's work and patent of his artificial heart had occurred many years before Jarvik's artificial heart was produced.