Osamu Aritomi

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Shimonoseki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dual phase stainless steel suitable for use in sour wells
- Patent number 4,486,231
- Issue date Dec 4, 1984
- Kabushiki Kaisha Kobe Seiko Sho
- Kazuo Fujiwara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...