<http://webisa.webdatacommons.org/211902493>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/281379518>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/211902493> .
<http://webisa.webdatacommons.org/prov/281611023>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/211902493> .
<http://webisa.webdatacommons.org/211902493>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/211902493>	<http://www.w3.org/ns/prov#value>	"The improvement as claimed in claim 10 wherein said means for making ripples is a gas spouting tube designed to spout a gas, such as air or nitrogen gas, into a refrigerant liquid in said vessel." .