About: http://webisa.webdatacommons.org/219710384

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	As also illustrated in the drawing, container 20 preferably includes one or more check valve drain assemblies (e.g., 44) located adjacent floor 38 to enable fluids such as condensation and the like to be drained from storage volume 40.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com