About: http://webisa.webdatacommons.org/430546061

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. 15A is a diagram for explaining that engagement of the locking parts of the protrusion part and the groove part is released using a jig; and
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com