Vern Bertelsman

AP American Trading And Production: 1 patents #13 of 26Top 50%

📍 Florissant, MO: #227 of 452 inventorsTop 55%

🗺 Missouri: #13,067 of 23,789 inventorsTop 55%

Overall (All Time): #3,685,845 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5760501	Compression driver motor structure	Warren H. Grote, Joseph A. Ferrante, Bruce Marlin	1998-06-02