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DJ

Duncan M. Johnson

Barton-upon-Humber, GB: #1 of 1 inventorsTop 100%
Overall (1989): #118,666 of 140,708Top 85%
1 Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4864519 Information transmission system David Appleby 1989-09-05

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