SH

Stephen Howarth

CL Coal Industry (Patents) Limited: 1 patents #73 of 230Top 35%
Overall (All Time): #3,897,899 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4907964 Device for extracting and burning methane William L. Hall 1990-03-13