DC

David Maxwell Cranswick

📍 Markham, CA: #922 of 1,673 inventorsTop 60%
Overall (All Time): #3,646,931 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5893431 Basement emergency exit assembly Keith S.J. Neumark 1999-04-13