2018-09-252018-09-251991-09-26https://hdl.handle.net/2152.3/10224Correspondence from Kevin Kear to Dr. William Thornton with an attached Preliminary Checkout Report for the Isotonic Device.Dr. William ThorntonresearchExerciseCybexKevin KearSpace MedicinePreliminary Checkout ReportIsotonic DeviceCorrespondencePrelimCheckoutReport_IsotonicDevice_1991