About: http://webisa.webdatacommons.org/231643621

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	It is contemplated that in addition to drilling, such cavities may be formed by dry milling, hot embossing, solid free-form fabrication, laser machining and other techniques known in the art.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com