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C03 - GLASS MINERAL OR SLAG WOOL
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C03 - GLASS MINERAL OR SLAG WOOL
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C03 - GLASS MINERAL OR SLAG WOOL
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3689242
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Patent number 3,689,242
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C03 - GLASS MINERAL OR SLAG WOOL
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2125912
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C03 - GLASS MINERAL OR SLAG WOOL
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2104555
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F27 - FURNACES KILNS OVENS RETORTS
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2089022
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F27 - FURNACES KILNS OVENS RETORTS