<http://webisa.webdatacommons.org/prov/101955876>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/136787619> .
<http://webisa.webdatacommons.org/136787619>	<http://www.w3.org/ns/prov#value>	"Patent US5320107 - pesticides to fields - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsA spirometer for in-home use by an individual with a respiratory disorder such as asthma measures the individual's current lung expiratory peak flow rate and provides a means to compare the current peak flow rate to a historical peak flow rate." .
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