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JG

Jan A. Groopthoff

Aerdenhout, NL: #1 of 2 inventorsTop 50%
Overall (1994): #163,346 of 165,921Top 100%
1 Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5307999 Metallic coolant for a metallurgical bath, method of manufacture 1994-05-03