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Yoshitomo Tezuka
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Hachioji, JP
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last 30 patents
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Patent Grant
Steel fiber for reinforcing concrete and production thereof
Patent number
4,560,622
Issue date
Dec 24, 1985
Aida Engineering, Ltd.
Yoshitomo Tezuka
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
Concrete reinforcing steel fibers
Patent number
4,559,276
Issue date
Dec 17, 1985
Aida Engineering Ltd.
Yoshitomo Tezuka
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES