2018-01-182018-01-181971http://hdl.handle.net/2152.3/4641This document is the Patent for the Ergometer, and was submitted by William E. Thornton. The patent was received June 29, 1971. From the abstract, "an electrical ergometer capable of imposing measurable work loads on the user's muscles for medical and/or physical therapy purposes."ErgometerpatentWilliam E. Thornton1971Space MedicineExerciseResearch