WN

William N. Nelson

SP Spiraflex: 1 patents #3 of 4Top 75%
Overall (All Time): #2,217,462 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6440044 Resistance mechanism with series connected resistance packs Paul S. Francis, Teryl K. Rouse 2002-08-27
6126580 Resistance exercise machine with series connected resistance packs Paul S. Francis, Teryl K. Rouse 2000-10-03