RH

Roy D. Holtham

CL Coal Industry (Patents) Limited: 1 patents #73 of 230Top 35%
📍 Upton-upon-Severn, GB: #5 of 11 inventorsTop 50%
Overall (All Time): #4,006,561 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4628828 Ash handling systems for combustion equipment Anthony J. Falconer, John F. G. Grainger 1986-12-16