RS

Rolf Spuler

HC Hoshino Gakki Co.: 1 patents #19 of 35Top 55%
📍 Winterthur, CH: #271 of 771 inventorsTop 40%
Overall (All Time): #2,291,280 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5277094 Device for inserting strings — 1994-01-11
5109747 Piezoelectric bridge sound pick-up for string instruments — 1992-05-05