



Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US07/583,039 Inventor Michael Leopold Original Assignee Michael Leopold Priority date (The priority date is an assumption and is not a legal conclusion.
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Google Patents US5028053A - Erratic bouncing ballĭownload PDF Info Publication number US5028053A US5028053A US07/583,039 US58303990A US5028053A US 5028053 A US5028053 A US 5028053A US 58303990 A US58303990 A US 58303990A US 5028053 A US5028053 A US 5028053A Authority US United States Prior art keywords projections ball spherical circle spherical member Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
