LW

Lothar H. Waldes

CH Christensen: 1 patents #11 of 32Top 35%
Overall (All Time): #4,093,021 of 4,157,543Top 100%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4278138 Composite heavy metal drill collar David S. Rowley, James T. Aumann 1981-07-14