About: http://webisa.webdatacommons.org/203419376

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	The invention is more particularly directed to the case where the rims or surrounds 10, only one of which is shown in the figures, are at least locally made from a relatively rigid material such as a metal or a metal alloy, for example.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk