| http://www.w3.org/ns/prov#value | - f said coiled conduit relative to the axis thereof causing the creation of eddy currents adjacent to the edges of said abutments, opening means in said conduit including inside openings and outside openings respectively adjacent to said abutments to eject contaminants from said fluid outwardly of said conduit by means of the eddy current effect around said abutments, and hollow wall means in said
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