DB

Doug Beck

LC Layne Christensen: 1 patents #1 of 2Top 50%
📍 Calgary, CA: #89 of 392 inventorsTop 25%
Overall (2011): #314,793 of 364,097Top 90%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7988437 Method and apparatus for installing flexible linings in underground pipes Ralph Bonanotte 2011-08-02