Charles H. Tracy

📍 Lakeville, MN: #182 of 513 inventorsTop 40%

🗺 Minnesota: #19,064 of 52,454 inventorsTop 40%

Overall (All Time): #1,685,110 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4362591	Large poster apparatus and method of constructing for back-lighted signboard	—	1982-12-07
4244769	Method of constructing large posters for back-lighted signboards	—	1981-01-13
4185408	Back-lighted signboard	—	1980-01-29