Robert E. Drain

📍 Butte, MT: #47 of 139 inventorsTop 35%

🗺 Montana: #987 of 3,198 inventorsTop 35%

Overall (All Time): #2,352,964 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4513340	Power transmission line protective apparatus	—	1985-04-23
4441135	Three-phase power transmission line phase-to-ground fault responder	—	1984-04-03