DO

David E. Ostrom

TG The Or Group: 2 patents #2 of 9Top 25%
Overall (All Time): #2,369,215 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D258068 Synthesizer organ or similar article 1981-01-27
4203340 Electronic musical instrument 1980-05-20