<http://webisa.webdatacommons.org/56930103>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/214686496>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/56930103> .
<http://webisa.webdatacommons.org/56930103>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/56930103>	<http://www.w3.org/ns/prov#value>	"Also known in the art is a method of fusing optical glass plates. specifically in the manufacture of precision optical cells, to form mechanically strong joints, stable to aggressive media, without any distortions." .