David L. Trudeau, Sr.

📍 Portland, ME: #172 of 276 inventorsTop 65%

🗺 Maine: #2,311 of 4,281 inventorsTop 55%

Overall (All Time): #3,997,855 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4597400	Umbrella, parasol and the like	—	1986-07-01