About: http://webisa.webdatacommons.org/426523340

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 exterior surfaces of inner and outer cylinders 21 and 22 and passageway 24 are coated with an electrically conductive material, such as silver, or the like (best shown in FIG. 3).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au