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Glass flower process
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Donald E. Hacker
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3271123
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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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C03 - GLASS MINERAL OR SLAG WOOL
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C03 - GLASS MINERAL OR SLAG WOOL
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2269010
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Patent number 2,269,010
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C03 - GLASS MINERAL OR SLAG WOOL
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2191245
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C03 - GLASS MINERAL OR SLAG WOOL
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2099485
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C03 - GLASS MINERAL OR SLAG WOOL
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2074784
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C03 - GLASS MINERAL OR SLAG WOOL
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C03 - GLASS MINERAL OR SLAG WOOL
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969280
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71838
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C03 - GLASS MINERAL OR SLAG WOOL