Rudolf Fetting

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Bremen, DE

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Patents Grantslast 30 patents

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Method and a device for thermal surface-hardening of metal workpieces
- Patent number 5,096,511
- Issue date Mar 17, 1992
- HPO Hanseatische Prazisions-und Orbittechnik GmbH
- Rudolf Fetting
- C21 - METALLURGY OF IRON