| http://www.w3.org/ns/prov#value | - Patente US4541232 - Device for driving a friction spinning unit - Google PatentesB???squeda Im???genes Maps Play YouTube Noticias Gmail Drive M???s ??Iniciar sesi???n B???squeda avanzada de patentesPatentesA friction spinning machine having a plurality of friction spinning units, each of the spinning units including two rotatable parts forming a spinning wedge, and two whorls each being connected
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