<http://webisa.webdatacommons.org/prov/271568263>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/201065652> .
<http://webisa.webdatacommons.org/201065652>	<http://www.w3.org/ns/prov#value>	"The present invention relates generally to gas flaring methods and apparatus, and more particularly, but not by way of limitation, to a method and apparatus for flaring gas mixtures such as the gas mixtures emitted from landfills while retarding the backward propagation of flame in the gas mixtures." .
<http://webisa.webdatacommons.org/201065652>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/201065652>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .