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<http://webisa.webdatacommons.org/prov/211531329>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/417086899> .
<http://webisa.webdatacommons.org/417086899>	<http://www.w3.org/ns/prov#value>	" still another schematic electrical diagram illustrating a further embodiment of the invention in which the fire valve is controlled by the unloading system.Apparatus constructed in accordance with the invention is adapted foruse with a conventional tank trailer 1, having a chassis 2 provided with wheels 3 and a cylindrically or other shaped tank 4 which is to contain a liquid such as crude oil" .
<http://webisa.webdatacommons.org/417086899>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patentgenius.com> .