Emergency intercom for Westminster Hospital.  [electronic resource] 

 -  Hospital equipment & supplies  Mar 1977 
 - 36-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0018-5620 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Emergency Service, Hospital<br/>London<br/>Telecommunications