Shigetoshi Maeda

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Niihama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for automatically punching the tuyeres of a converter
- Patent number 4,307,871
- Issue date Dec 29, 1981
- Sumitomo Metal Mining Co., Ltd.
- Yasuro Tomoda
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...