Robert D. Durgin

📍 Rockville, MD: #16 of 74 inventorsTop 25%

🗺 Maryland: #225 of 1,164 inventorsTop 20%

Overall (1989): #63,759 of 140,708Top 50%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D303859	Frost and ice scraper	—	1989-10-03