<http://webisa.webdatacommons.org/151768053>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/151768053>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/151768053>	<http://www.w3.org/ns/prov#value>	"In the illustrated form of the invention, the base member 16 preferably is injection molding of a plastic material, such as polycarbonate, and is formed with a generally flat upper surface 19 (FIG. 4)." .
<http://webisa.webdatacommons.org/prov/64015376>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/151768053> .