ENGSTROM, C G <br/><br/>
[Respirator designed according to a new principle].  [electronic resource] 

 -  Svenska lakartidningen  Mar 1953 
 - 545-52 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Humidity<br/>Ventilators, Mechanical