BC

Bernt Carstens

Overall (2002): #72,604 of 266,432Top 30%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6341784 Motor-driven stair climbing device 2002-01-29
6336642 Safety device for stair-climbing systems 2002-01-08