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James O. Gray

Rayland, OH: #1 of 1 inventorsTop 100%
Ohio: #715 of 3,574 inventorsTop 25%
Overall (1989): #100,659 of 140,708Top 75%
1 Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D301687 Mine roof support plate Bruce A. Cassidy 1989-06-20

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