| http://www.w3.org/ns/prov#value | - An embodiment of the present invention will now be described, by way of example, with reference to theaccompanying drawings, in which: FIG. 1, is an axial section of an electromagnetic powder coupling according to the invention; FIG. 2, is a partial end view in the direction of the arrow II in FIG. 1; FIG. 3, is a partial section showing, a detail of FIG. 1; FIG. 4, illustrates, on a still larger
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