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Heating cooker
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Patent number 9,863,643
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Issue date Jan 9, 2018
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PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
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Katsuyuki Aihara
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C03 - GLASS MINERAL OR SLAG WOOL
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3617794
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Patent number 3,617,794
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Issue date Nov 2, 1971
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C03 - GLASS MINERAL OR SLAG WOOL
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3525084
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Patent number 3,525,084
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Issue date Aug 18, 1970
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C03 - GLASS MINERAL OR SLAG WOOL