| http://www.w3.org/ns/prov#value | - With the foregoing and other objects in view there is provided, in accordance with the invention, a friction spinning machine having a plurality of friction spinning units, each of the spinning units including two rotatable parts forming a spinning wedge, the parts being movable in opposite directions at least at a portion of the surface thereof, and two whorls or wharves or pulleys each being con
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