About: http://webisa.webdatacommons.org/200705557

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	The duration of the air blast is a matter of choice and is dependent upon a number of different factors such as the amount and types of materials in the batch, the degree of mixture that is desired, airpressures, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com