DL

David M. Lang

BW Becor Western: 2 patents #1 of 11Top 10%
Overall (All Time): #2,344,250 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4686873 Casing tong assembly Richard W. Lewitzke 1987-08-18
4605257 Expandable operator's cab Richard W. Lewitzke 1986-08-12