SG

Sven Grondahl

Overall (All Time): #1,626,411 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6049959 Method and machine for making a spring-mattress web and a spring-mattress web — 2000-04-18
6023955 Device for the bending of springs for spring interior mattresses — 2000-02-15
4910851 Device in a clamping machine — 1990-03-27