CG

Charles Henry Grace

📍 Westlake, OH: #177 of 434 inventorsTop 45%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,080,350 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8569605 Musical wind instrument with electronic tuning — 2013-10-29
5808218 Expressive musical instrument with which accurate pitch can be played easily — 1998-09-15