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J. Frank Helderman

Graham, NC: #1 of 3 inventorsTop 35%
North Carolina: #392 of 1,767 inventorsTop 25%
Overall (1994): #121,806 of 165,921Top 75%
1 Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5366328 Assembly for inserting an attachment coil in concrete — 1994-11-22

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J. Keith Hartman1
J. Paul Harmon1