A system and method for enabling the replacement of electric toothbrush heads on toothbrush models that require users to replace the entire toothbrush head assembly is described. Toothbrush head assemblies typically include much more than a simple toothbrush head, for example, a shank attached to magnets...http://www.google.es/patents/US7784144?utm_source=gb-gplus-sharePatente US7784144 - Electric toothbrush head replacement system and method
Electric toothbrush head replacement system and method
