About: http://webisa.webdatacommons.org/114145064

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	However, the McCrery et al. device and other prior art devices lack certain features needed to make them so convenient that a user will consistently use them without undue time consumption and/or confusion.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com