About: http://webisa.webdatacommons.org/330971833

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	Several representative examples of these devices are shown and described in detail in the various patents submitted with this disclosure and made of record in the file history hereof to show the general state of art in this field.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es