Thornton, William2018-02-142018-02-141981-06-08http://hdl.handle.net/2152.3/5736This image reflects a letter written by Bruce Del Mar regarding Pressurometers.William ThorntonletterdraftJohn WallaceBruce Del MarDel Mar AvionicsSpace MedicineUTMBAmbulatoryBlood Pressure MonitorPressurometer IIIPressurometer II