| http://www.w3.org/ns/prov#value | - The chamber is a disposable thin walled flexible reservoir for containing a supply of liquid and for dispensing breathable gas such as air in admixture with the liquid....http://www.google.com/patents/US4159803?utm_source=gb-gplus-sharePatent US4159803 - Chamber for ultrasonic aerosol generationAdvanced Patent SearchPublication numberUS4159803 APublication typeGrantApplication numberUS 05/783,105P
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