Rienk M. Nijholt

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Noord-Scharwoude, NL

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacture of pig iron using hollow tube to reseal tap role
- Patent number 5,058,864
- Issue date Oct 22, 1991
- Hoogovens Groep B.V.
- Ronald N. Molenaar
- C21 - METALLURGY OF IRON