About: http://webisa.webdatacommons.org/61472819

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	What is necessary, therefore, is a method and apparatus by which laser beam guard panels may be quickly positioned and removed to facilitate adjustments to laser experiments and applications.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com