FJ

Frederick J. Welland, Jr.

📍 Namu, CA: #1 of 1 inventorsTop 100%
Overall (All Time): #4,124,188 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4234941 Verbal read-out depth sounding system Edward C. Cairns 1980-11-18