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Concrete pile
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Patent number 4,048,805
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Issue date Sep 20, 1977
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Nippon Concrete Industries Co. Ltd.
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Yoshikiyo Fukushima
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Connected part of concrete pipe
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Patent number 4,026,582
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Issue date May 31, 1977
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Nippon Concrete Industries Co. Ltd.
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Nobuyuki Abe
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Apparatus for transferring a mold
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Patent number 3,989,144
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Issue date Nov 2, 1976
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Nippon Concrete Industries Co. Ltd.
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Kenzo Momota
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B28 - WORKING CEMENT, CLAY, OR STONE
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