<http://webisa.webdatacommons.org/162743123>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/162743123>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/162743123>	<http://www.w3.org/ns/prov#value>	"Oct. 27, 1959 Filed March 11, 1955 '5 Sheets-Sheet 2 INVENTOR. 49 Hszaeer W K4472 United States Patent 15 Claims. (Cl. 10325) This invention relates to pump controls and in particular to pump controls for automatically actuating and deactuating a pump in response to the level of the liquid to be pumped." .
<http://webisa.webdatacommons.org/prov/437702110>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/162743123> .