About: http://webisa.webdatacommons.org/353435344

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	A structure according to claim 21 including four hollow float caissons having side and bottom walls, said float caissons each containing said body of liquid within which said float means are immersed. 24.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com