About: http://webisa.webdatacommons.org/203347161

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	A second problem with the Tapper device and those of its genre is that the electrolysis operation performed thereby must be limited to a certain period of time, such as forty-five seconds, resulting in two distinct disadvantages.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com