DR

Dennis Arthur Ruffer

TC The Allen Company: 1 patents #11 of 27Top 45%
📍 Kalamazoo, MI: #818 of 1,283 inventorsTop 65%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #4,048,541 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4373186 Matrix method and apparatus for engine analysis John Marshall 1983-02-08