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Optical attenuator
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Patent number 5,572,618
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Issue date Nov 5, 1996
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Lucent Technologies Inc.
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David J. DiGiovanni
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G02 - OPTICS
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Erbium-doped fiber amplifier
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Patent number 5,005,175
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Issue date Apr 2, 1991
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AT&T Bell Laboratories
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Emmanuel Desurvire
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H01 - BASIC ELECTRIC ELEMENTS
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Array connector for optical fibers
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Patent number 4,762,387
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Issue date Aug 9, 1988
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American Telephone and Telegraph Company, AT&T Bell Laboratories
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Robert L. Batdorf
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G02 - OPTICS
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Multiconstituent optical fiber
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Patent number 4,666,247
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Issue date May 19, 1987
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American Telephone and Telegraph Company, AT&T Bell Laboratories
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John B. MacChesney
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C03 - GLASS MINERAL OR SLAG WOOL
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Doped optical fiber
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Patent number 4,616,901
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Issue date Oct 14, 1986
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AT&T Bell Laboratories
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John B. MacChesney
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G02 - OPTICS
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