<http://webisa.webdatacommons.org/prov/104578974> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/245933879> . <http://webisa.webdatacommons.org/245933879> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/245933879> <http://www.w3.org/ns/prov#value> "The elastic bands 5 are made of such material as natural or synthetic rubber or plastics, and adhesively interposed between the associated extensions 3a and the sheets 7 together forming the respective side flaps 4." . <http://webisa.webdatacommons.org/245933879> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.ca> . <http://webisa.webdatacommons.org/prov/50103601> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/245933879> .