rotary pump an entity of type: Class

a positive displacement pump that consists of a chamber containing gears, cams, screws, vanes, plungers or similar elements actuated by relative rotation of the drive shaft or casing and which has no separate inlet and outlet valves.
rotary pump 
xsd:dateTime 2018-11-06T10:36:40Z 
xsd:dateTime 2019-10-01T00:56:18Z 
xsd:boolean true 

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