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Press die and press machine
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Patent number 9,511,402
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Issue date Dec 6, 2016
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TOA Industries Co., Ltd.
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Koji Hayashi
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Multistage furnace system
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Patent number 9,127,886
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Issue date Sep 8, 2015
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TOA Industries Co., Ltd.
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Koji Hayashi
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F27 - FURNACES KILNS OVENS RETORTS
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Multistage furnace
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Patent number 8,989,565
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Issue date Mar 24, 2015
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TOA Industries Co., Ltd.
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Koji Hayashi
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F27 - FURNACES KILNS OVENS RETORTS