<http://webisa.webdatacommons.org/37883013>	<http://www.w3.org/ns/prov#value>	"DETAILED DESCRIPTION OF THE INVENTION While this invention may be employed for unloading different articles or materials from various types of containers or vehicles, in the preferred embodiment it has been illustrated and described in connection with the unloading of mail sacks or parcels from trucks." .
<http://webisa.webdatacommons.org/prov/409946646>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/37883013> .
<http://webisa.webdatacommons.org/prov/45036082>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/37883013> .
<http://webisa.webdatacommons.org/37883013>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/37883013>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .