DH

Douglas M. Hanes

MT Mcconway & Torley: 3 patents #2 of 3Top 70%
📍 Pittsburgh, PA: #14 of 308 inventorsTop 5%
🗺 Pennsylvania: #176 of 4,234 inventorsTop 5%
Overall (1994): #13,821 of 165,921Top 9%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5361917 Drawbar bearing block Peter S. Mautino 1994-11-08
5339970 Slackless drawbar assembly employing adjustable blockout apparatus Peter S. Mautino 1994-08-23
5320229 Yoke for coupling railway cars utilizing a drawbar assembly Peter S. Mautino 1994-06-14