WW

William Willis

HY Hydril: 1 patents #73 of 135Top 55%
Overall (All Time): #1,837,336 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11267602 Refuse bag insertion device and method 2022-03-08
4425715 Thread gaging apparatus and method Clyde C. Chivens 1984-01-17