VL

Volkmar W. Leistner

SM Sigma Tool & Machine: 5 patents #2 of 10Top 20%
Overall (All Time): #880,931 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6637994 Square-headed rivet fastener 2003-10-28
5863164 Tee-nut with radiussed barrel end 1999-01-26
5722131 Clip for furniture springs, and method of manufacture Garry Randall Olson 1998-03-03
5618144 Tee-nut with enlarged barrel end 1997-04-08
5606794 Variable impact tee-nut insertion machine 1997-03-04
5560099 Tee-nut setting and forming machine Walter H. Leistner 1996-10-01