| http://www.w3.org/ns/prov#value | - In a pump including a housing, said housing having a fluid chamber therein, a rotatable shaft journaled on bearing surfaces in said housing, an outlet from said housing, variable displacement pump means in said housing driven by said rotatable shaft to pump fluid from said fluid chamber through said outlet, a fluid supply reservoir, an inlet to said fiuid chamber connected to said reservoir, a cen
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