A massaging device has interchangeable heads which provide a deep muscular petrissage, and a deep transverse or circular friction. The device has a variable speed power drive, a transmission and a receptacle handle with a snap connector for replaceable massage heads. One of the massage heads connects...http://www.google.fr/patents/US5103809?utm_source=gb-gplus-shareBrevet US5103809 - Massaging device
