ES

Erich Stephen

WB Westinghouse Air Brake: 2 patents #4 of 43Top 10%
📍 Calgary, CA: #13 of 274 inventorsTop 5%
Overall (2004): #65,864 of 270,089Top 25%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6799393 Double trolley overhead door operator 2004-10-05
6718694 Drive nut assembly for a door operator Andre Stojc 2004-04-13