About: http://webisa.webdatacommons.org/35501398

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	Still another object of this invention is a process for producing printed circuits which eliminates the need for a protective tin coating on the conductive circuit lines.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr