BH

Billy M. Hazlegrove

BR Brown & Root: 1 patents #15 of 31Top 50%
Overall (All Time): #3,986,465 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4710059 Method and apparatus for simultaneous trenching and pipe laying in an arctic environment Richard A. Roberts 1987-12-01