JV

John G. Vaal

IT International Telephone And Telegraph: 1 patents #182 of 507Top 40%
📍 Warsaw, IN: #487 of 777 inventorsTop 65%
🗺 Indiana: #19,404 of 33,936 inventorsTop 60%
Overall (All Time): #4,021,378 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4540958 Zero if frequency-modulator Edward J. Neyens 1985-09-10