Louis J. Grassa

📍 Somerville, MA: #1,350 of 2,735 inventorsTop 50%

🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%

Overall (All Time): #2,276,774 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5494296	Multiple position play twenty one game	—	1996-02-27
5390934	Multiple position play twenty one game	—	1995-02-21