Ken Tomiyasu

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Nishinomiya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lubricant surface-treated steel pipe for hydroforming use
- Patent number 6,009,913
- Issue date Jan 4, 2000
- Sumitomo Metal Industries, Ltd.
- Masayasu Kojima
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...