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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	FIG. 2 is a graph showing the viscosifying effect of poly-2-vinyl pyridine in ZnBr.sub.2 /CaBr.sub.2 brines having densities of 19.2 lbs/gal in static aging tests at elevated temperatures for 16 hours.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com