Takashi Sakuraya

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Higashiyamato, JP

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Patents Grantslast 30 patents

Information Patent Grant
Shield tunneling machine
- Patent number 4,629,362
- Issue date Dec 16, 1986
- Ishikawajima-Harima Jukogyo Kabushiki Kaisha
- Norio Kainuma
- E21 - EARTH DRILLING MINING