JB

Joseph W. Butler

CL Coal Industry (Patents) Limited: 1 patents #73 of 230Top 35%
Overall (All Time): #3,995,344 of 4,157,543Top 100%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4587852 Conveyor belt tension sensing Edward E. Jarvis 1986-05-13