DM

Douglas J. Mackenzie

📍 Redwater, CA: #8 of 12 inventorsTop 70%
Overall (All Time): #3,866,234 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5173998 Grab hook for attachment to a chain to provide partial link adjustment, and method of use thereof 1992-12-29