| http://www.w3.org/ns/prov#value | - A representative sampling of other prior art filtering arrangements intended for filtering blood and other body fluids includes U.S. Pat. Nos. 3,493,503, 3,882,026, 4,170,056, 4,157,967, 4,476,023 and 4,370,381, each or which describes a disc-type filter.
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