DB

Donald R. Boyd

SA Siemens Energy & Automation: 1 patents #4 of 12Top 35%
📍 Sanford, NC: #2 of 2 inventorsTop 100%
🗺 North Carolina: #217 of 1,241 inventorsTop 20%
Overall (1989): #119,946 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4876521 Tripping coil with flux shifting coil and booster coil 1989-10-24