FD

Frank W. Dowdican

CP C.H. Perrott: 1 patents #1 of 2Top 50%
📍 Portland, OR: #99 of 366 inventorsTop 30%
🗺 Oregon: #335 of 1,309 inventorsTop 30%
Overall (1997): #152,783 of 185,788Top 85%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5678588 Sewer line multiple trap priming system and method Charles H. Perrott 1997-10-21