DW

David W. Winship

IS Irwin Seating: 2 patents #8 of 22Top 40%
Overall (All Time): #2,223,977 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6199325 Power system for extending and retracting a structure — 2001-03-13
5559411 Nonfriction power system for extending/retracting a structure — 1996-09-24