Kihachiro Furumi

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Hiratsuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for excavation
- Patent number 4,193,634
- Issue date Mar 18, 1980
- Kabushiki Kaisha Komatsu Seisakusho
- Joji Nakamura
- E21 - EARTH DRILLING MINING