DW

David Wortner

HM Handy Button Machine: 1 patents #9 of 18Top 50%
Overall (All Time): #3,712,482 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5613817 Plastic tack strip with interlock E. Dan Bush 1997-03-25