<http://webisa.webdatacommons.org/201289361>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .
<http://webisa.webdatacommons.org/prov/455181494>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/201289361> .
<http://webisa.webdatacommons.org/201289361>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/201289361>	<http://www.w3.org/ns/prov#value>	"Thumb tack-like members are preferably formed of suitable plastic material such as polypropylene (PP), polyoxymethylene (POM), and the like, capable of being formed with so-called ???living hinges??? for multiple use." .