WB

William M. Block

SS Ssmc: 1 patents #32 of 50Top 65%
Overall (All Time): #3,948,122 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4730567 Composite feed dog for a sewing machine William Joseph Edwards, Charles R. Odermann, Thaddeus J. Zylbert 1988-03-15