DC

David Carlberg

EC Engineering System Co.: 1 patents #1 of 1Top 100%
📍 Portland, OR: #13 of 101 inventorsTop 15%
🗺 Oregon: #40 of 384 inventorsTop 15%
Overall (1982): #71,022 of 81,411Top 90%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4365750 Adjustable sprinkler system — 1982-12-28