DL

David J. Long

📍 Wrightwood, CA: #1 of 2 inventorsTop 50%
🗺 California: #4,287 of 28,521 inventorsTop 20%
Overall (2003): #70,992 of 273,478Top 30%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6644421 Sonde housing — 2003-11-11
6637969 Swivel Clayton Crane 2003-10-28