About: http://webisa.webdatacommons.org/6557386

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	In some preferred embodiments of the present invention, some or all of O-rings 57, 55, 53, and 51, are replaced and/or supplemented by other sealing devices known in the art, such as glue.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es