Thornton, William2018-02-132018-02-131980-02-12http://hdl.handle.net/2152.3/5666This image reflects a letter written by William E. Thornton regarding Blood Pressure Transducers.letterWilliam ThorntonBruce Del MarR.I. CherryDave SquiresH. RussellC. SanctuaryAvionics Research ProductsBlood Pressure TransducersBlood Pressure MonitorAmbulatory