RA

Robert K Armstrong

BL Broken Hill Proprietary Company Limited: 1 patents #2 of 21Top 10%
Overall (1989): #64,785 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4816090 Heat treated cold rolled steel strapping Jeffery W Doonan, Peter Ivan Unicomb 1989-03-28