Ryutaro Yoritomi

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Koishikawa, Bunkyo-ku, Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rod device for use as an arm of an excavator
- Patent number 4,436,476
- Issue date Mar 13, 1984
- Ryutaro Yoritomi
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING