DC

Douglas J. Calvin

📍 Livonia, MI: #22 of 94 inventorsTop 25%
🗺 Michigan: #1,426 of 5,720 inventorsTop 25%
Overall (2005): #210,801 of 245,428Top 90%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6949019 Flap-type rotary finishing device Robert J. Wentworth 2005-09-27