DS

David Michael Spinazzola

Overall (All Time): #980,113 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10269334 One touch drum tuning system 2019-04-23
9053685 One touch drum tuning components Joseph A. Penaranda 2015-06-09
8912416 One touch drum tuning system 2014-12-16
7501567 Rotation activated drum tuning system 2009-03-10
7138574 Drumhead tightening and tuning apparatus 2006-11-21