DH

Derek S. Haskayne

🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,332,840 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7574934 Missing hole detector — 2009-08-18