Home / Forums / Melodica construction, repair and maintenance / vibrandoneon construction / Reply To: vibrandoneon construction Reply To: vibrandoneon construction May 21, 2015 at 10:41 am #5321 StephenParticipant If someone knows the online patent for your vibrandoneon (including the technical drawings) maybe we could learn more. I know there is an Italian “vibrandoneon” (?) patent by G. Tonini (?), but I just can’t find it online.