Melvin C. Coffman

📍 Denver, CO: #2,551 of 4,554 inventorsTop 60%

🗺 Colorado: #24,093 of 40,980 inventorsTop 60%

Overall (All Time): #4,100,825 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D261901	Shaft for a marking instrument	—	1981-11-17