SG

Stanley Gilliver

CL Coal Industry (Patents) Limited: 2 patents #41 of 230Top 20%
Overall (All Time): #2,356,394 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4428832 Screening apparatus Michael Armstrong, Rodney W. O'Brian 1984-01-31
4308135 Sizing screens Michael Armstrong, Rodney W. O'Brian 1981-12-29