Emerson respirator or "iron lung".
Bause
George S
GS
ASA's Wood Library-Museum of Anesthesiology, Park Ridge, Illinois, USA. UJYC@aol.com
D049673:History, 20th Century; D012121:Respiration, Artificial / Q000266:history* / Q000295:instrumentation; D012122:Ventilators, Mechanical / Q000266:history*