About: http://webisa.webdatacommons.org/42780759

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	FIG. 3 is a section of a more sophisticated version of the invention, which also incorporates means of positively locking and sealing plug and socket together.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com