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Henri P. T. van Helden

LM Long Manufacturing: 1 patents #24 of 42Top 60%
📍 Beverly Hills, MI: #815 of 1,381 inventorsTop 60%
🗺 Michigan: #49,615 of 86,293 inventorsTop 60%
Overall (All Time): #3,556,705 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6446712 Radial flow annular heat exchangers Alan K. Wu, Bruce L. Evans 2002-09-10