Preben N. Hansen

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Patents Grantslast 30 patents

Information Patent Grant
Crushed and graded magnetite ore for manufacturing moulds and cores
- Patent number 5,865,236
- Issue date Feb 2, 1999
- Georg Fischer Disa A/S
- Preben Nordgaard Hansen
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
String mould plant including arrangement for preventing shrinkage v...
- Patent number 5,836,373
- Issue date Nov 17, 1998
- Georg Fischer Disa A/S
- Preben N. Hansen
- B22 - CASTING POWDER METALLURGY