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Norman Brotzel

Overall (All Time): #2,131,025 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7478973 Concrete-leveling system — 2009-01-20
7470084 Ergonomic concrete hand screed — 2008-12-30

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