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Steam aperture device
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Patent number 4,081,225
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Issue date Mar 28, 1978
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Sekisui Kaseihin Kogyo Kabushiki Kaisha
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Masato Yaita
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Method of manufacturing a packaging container
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Patent number 4,060,958
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Issue date Dec 6, 1977
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Sekisui Kaseihin Kogyo Kabushiki Kaisha
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Takashi Matsui
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Expandable styrene polymer particle composition
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Patent number 3,994,840
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Issue date Nov 30, 1976
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Sekisui Kaseihin Kogyo Kabushiki Kaisha
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Mutsuhiko Kajimura
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Process for preparing a synthetic wood
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Patent number 3,936,518
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Issue date Feb 3, 1976
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Sekisui Kaseihin Kogyo Kabushiki Kaisha
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Shigenari Soda
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL