DH

Donald F. Hawken

IL Isotec Industries Limited: 1 patents #3 of 4Top 75%
📍 Toronto, CA: #5,171 of 9,482 inventorsTop 55%
Overall (All Time): #4,125,505 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4238675 Optics for infrared intrusion detector Zbigniew W. Turlej 1980-12-09