Edwin W. Trefzger

DC D. B. Smith & Co.: 2 patents #2 of 6Top 35%

📍 Ilion, NY: #7 of 21 inventorsTop 35%

🗺 New York: #48,759 of 115,490 inventorsTop 45%

Overall (All Time): #2,322,154 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D307935	Spray gun	—	1990-05-15
4905906	Continuous sprayer	—	1990-03-06