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Discrete glass sheet cutting
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Patent number 4,749,400
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Issue date Jun 7, 1988
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PPG Industries, Inc.
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Raymond J. Mouly
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C03 - GLASS MINERAL OR SLAG WOOL
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Glass batch liquefaction
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Patent number RE32317
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Issue date Dec 30, 1986
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PPG Industries, Inc.
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Gerald E. Kunkle
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065 - Glass manufacturing
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Ablating liquefaction method
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Patent number 4,559,071
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Issue date Dec 17, 1985
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PPG Industries, Inc.
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Gerald E. Kunkle
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C03 - GLASS MINERAL OR SLAG WOOL
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Glass batch liquefaction
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Patent number 4,381,934
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Issue date May 3, 1983
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PPG Industries, Inc.
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Gerald E. Kunkle
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C03 - GLASS MINERAL OR SLAG WOOL
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