David J. Opal

📍 Lebanon, CT: #42 of 59 inventorsTop 75%

🗺 Connecticut: #21,355 of 34,797 inventorsTop 65%

Overall (All Time): #3,698,427 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5816524	Mainspring decoiler and method	—	1998-10-06