BC

Bruce C. Christensen

WU Wormald U.S.: 2 patents #5 of 9Top 60%
Overall (All Time): #2,333,728 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4877057 Pressure equalizing valve — 1989-10-31
4722358 Pressure equalizing valve — 1988-02-02