RE

Rolf D. Engelhardt

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Heinsberg, DE: #68 of 123 inventorsTop 60%
Overall (All Time): #4,025,481 of 4,157,543Top 100%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4556104 Heat exchanger 1985-12-03