Russell G. Heyl

IT International Telephone And Telegraph: 1 patents #182 of 507Top 40%

📍 Birmingham, MI: #518 of 851 inventorsTop 65%

🗺 Michigan: #49,615 of 86,293 inventorsTop 60%

Overall (All Time): #4,101,975 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4304822	Coated metal tubing	—	1981-12-08