NH

Nancy A. Helm

📍 Littleton, MA: #238 of 347 inventorsTop 70%
🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #4,029,423 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4431000 Transcutaneous nerve stimulator with pseusorandom pulse generator Russell B. Butler, A. Walter MacEachern 1984-02-14