Priority date (The priority date is an assumption and is not a legal conclusion. ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US08/373,871 Inventor Eric W. ![]() Google Patents US5538487A - Isometric exerciseÄownload PDF Info Publication number US5538487A US5538487A US08/373,871 US37387195A US5538487A US 5538487 A US5538487 A US 5538487A US 37387195 A US37387195 A US 37387195A US 5538487 A US5538487 A US 5538487A Authority US United States Prior art keywords upright edge bar tie bar apertures Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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