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Hajime Mizunoya
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Tsuchiura, JP
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last 30 patents
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Patent Grant
Portable ultrasonic detector
Patent number
6,397,681
Issue date
Jun 4, 2002
Hitachi Construction Machinery Co., Ltd.
Hajime Mizunoya
G01 - MEASURING TESTING
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Patent Grant
Portable non-destructive inspection device and support casing therefor
Patent number
6,112,593
Issue date
Sep 5, 2000
Hitachi Construction Machinery Co., Ltd.
Shigenori Aoki
G01 - MEASURING TESTING