DH

Don Darrell Hickman

📍 Williston, ND: #1 of 4 inventorsTop 25%
🗺 North Dakota: #48 of 192 inventorsTop 25%
Overall (2011): #314,013 of 364,097Top 90%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7992274 Method of making an open-head power tong assembly — 2011-08-09