About: http://webisa.webdatacommons.org/322899788

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 contact blocks 504 are coupled via damping portions 511 formed of flexible or resilient material such as synthetic rubber to a movable base frame 510 having sufficient rigidity.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com