| http://www.w3.org/ns/prov#value | - It will be understood that the pump impeller 16 is merely representative of any rotor, and the so-called washer 19 is representative of a form of sealing member and that the forms of the coil springs or resilient members and boot are preferred forms and admit of variation, as is also the means 32 for binding the rear end of the boot to the cartridge case.
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