<http://webisa.webdatacommons.org/438238011>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/104578974>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/438238011> .
<http://webisa.webdatacommons.org/438238011>	<http://www.w3.org/ns/prov#value>	"In some embodiments, a clamping film-holding-bar 181 includes a tube made of synthetic rubber or other elastomeric material having a hollow core 183 (which helps keep film-holding-bar 181 on film-holder opener 185 as it is slid right-to-left (in the orientation shown the drawing)) and a slit 182." .
<http://webisa.webdatacommons.org/438238011>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .