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Easily openable sealed container
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Patent number 4,915,289
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Issue date Apr 10, 1990
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Toyo Seikan Kaisha, Ltd.
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Yasushi Hatano
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Method of making a metallic container
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Patent number 4,560,430
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Issue date Dec 24, 1985
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Toyo Seikan Kaisha, Limited
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Michio Watanabe
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Process for preparation of metal vessels
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Patent number 4,508,481
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Issue date Apr 2, 1985
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Toyo Seikan Kaisha, Ltd.
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Kazuhisa Ishibashi
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Process for preparation of metal vessels
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Patent number 4,451,316
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Issue date May 29, 1984
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Toyo Seikan Kaisha, Ltd.
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Kazuhisa Ishibashi
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...