Nakakuro Construction Co., Ltd.

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Toyama-Ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Shield tunneling machine
- Patent number 7,073,869
- Issue date Jul 11, 2006
- Nakakuro Construction Co., Ltd.
- Kenichi Nakakuro
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tunnel excavator with variable pressure water jets
- Patent number 6,332,652
- Issue date Dec 25, 2001
- Nakakuro Construction Co., Ltd.
- Kenichi Nakakuro
- E21 - EARTH DRILLING MINING

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