Hajime Ninomiya

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Amagasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Corrosion-preventive sleeve for drilled hole in metal pipe and tool...
- Patent number 5,244,236
- Issue date Sep 14, 1993
- Kubota Corporation
- Hajime Ninomiya
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...