FD

Frank Dea

MI Mitel: 1 patents #2 of 23Top 9%
📍 Ottawa, CA: #28 of 159 inventorsTop 20%
Overall (1989): #115,056 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4868872 Telephone tone detector Melvin J. Roberts 1989-09-19