<http://webisa.webdatacommons.org/344499735>	<http://www.w3.org/ns/prov#value>	"Description of the Prior ArtPeople who engage in construction and repair of various buildings, dwellings, and other structures frequently employ ladders and scaffolding to support them above a floor or ground surface in order to gain access to a particular portion or component of the structure." .
<http://webisa.webdatacommons.org/prov/185580072>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/344499735> .
<http://webisa.webdatacommons.org/344499735>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/344499735>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .