SJ

Siegfried Jackwerth

AM Amazon: 1 patents #1 of 11Top 10%
📍 Friedrichsdorf, DE: #3 of 8 inventorsTop 40%
Overall (1997): #76,839 of 185,788Top 45%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5645149 Freewheel-retainer ring with centrifugal force takeoff Ruprecht Maurer, Karlheinz Timtner 1997-07-08