About: http://webisa.webdatacommons.org/224879207

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 system of claim 1 wherein the sensor is a strain gage whose resistance changes in response to the relaxation of a collapsible ink bag as ink is depleted therefrom.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com