About: http://webisa.webdatacommons.org/342310060

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If desired, a bag of suitable size of porous material may be fitted over the extremity of duct 36 where such communications with the cage, with such bag as confined by the cage serving to collect material.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com