About: http://webisa.webdatacommons.org/230100408

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	The present invention relates to a howling prevention apparatus or howling remover capable of effectively preventing a howling noise in a small listening room or other places.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com