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Duane C. Balch

📍 Napa, CA: #9 of 25 inventorsTop 40%
🗺 California: #8,996 of 28,521 inventorsTop 35%
Overall (2003): #233,458 of 273,478Top 90%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6659155 Bidirectional swinging screen door and frame assembly Michael A. Mlenek, Patrick L. Mlenek, Denis R. Niemeyer 2003-12-09