DH

David R. Helsing

BU Bundy: 1 patents #16 of 32Top 50%
Overall (All Time): #3,795,331 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5303963 Tube coupling with secondary retainer clip James L. McNaughton 1994-04-19