Hiroshi Majima

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Aoba-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Steel gear
- Patent number 5,746,842
- Issue date May 5, 1998
- Toa Steel Co., Ltd.
- Toyoaki Eguchi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...