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Ralph W. Dumke

Kingston, NH: #1 of 4 inventorsTop 25%
New Hampshire: #146 of 683 inventorsTop 25%
Overall (1997): #51,209 of 185,788Top 30%
1 Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5680882 Waterline injection nozzle apparatus — 1997-10-28

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