About: http://webisa.webdatacommons.org/389901593

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	6,357,059, 6,003,166, 6,058,521, 4,744,112, 5,791,106, and 6,412,123 all similarly describe a range of different spas and tubs all of which utilize pumps and other electrical fittings for pumped circulation and heating.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com