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Optical fibre preform manufacture
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Patent number 4,518,407
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Issue date May 21, 1985
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International Standard Electric Corporation
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Philip W. Black
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C03 - GLASS MINERAL OR SLAG WOOL
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Optical fibres
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Patent number 4,372,648
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Issue date Feb 8, 1983
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International Standard Electric Corporation
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Philip W. Black
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G02 - OPTICS
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Limited mode optical fiber
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Patent number 4,205,901
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Issue date Jun 3, 1980
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International Standard Electric Corporation
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Melvin M. Ramsay
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G02 - OPTICS
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Glass manufacture
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Patent number 4,202,682
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Issue date May 13, 1980
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International Standard Electric Corporation
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Philip W. Black
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C03 - GLASS MINERAL OR SLAG WOOL
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