Hiroshi Yamada

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Yokohama, JA

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for examining weld defects in vertical pipes b...
- Patent number 4,096,757
- Issue date Jun 27, 1978
- Tokyo Shibaura Denki Kabushiki Kaisha
- Ryoichi Ishii
- G01 - MEASURING TESTING