| http://www.w3.org/ns/prov#value | - In a pumping apparatus, drive means including an upwardly extending drive shaft, a housing defining a pumping chamber located above said drive means, an impeller connected to the drive shaft and disposed within saidpumping chamber, a casing disposed above the housing. first conduit means providing communication between the lower end of the casing and said pumping chamber for supplying liquid from
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