Yoshifumi Osaka

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Settsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Boring device for lining material in branched portions of lined con...
- Patent number 5,197,540
- Issue date Mar 30, 1993
- Ashimori Kogyo Kabushiki Kaisha
- Isaburo Yagi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...