Walter R. Mellen

📍 Chelmsford, MA: #551 of 858 inventorsTop 65%

🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%

Overall (All Time): #3,739,456 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5503587	Multi-ball drop toy	—	1996-04-02