About: http://webisa.webdatacommons.org/140163119

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	In prior art devices and systems, companies such as for example, Unit Instruments, Emerson Inc. and others, have marketed mass flow controllers based on thermal flow sensors with macroscopic core tubes of stainless steel for decades.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com