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Fluorescent blackboard
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Issue date Aug 29, 2017
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Hong Xie
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Free-space optical hybrid
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Patent number 8,570,654
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Issue date Oct 29, 2013
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O-Net Communications (Shenzhen) Limited
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Bin Chen
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G02 - OPTICS
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Tunable filter
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Patent number 8,103,138
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Issue date Jan 24, 2012
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O-Net Communications (Shenzhen) Limited
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Yang Fang
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G01 - MEASURING TESTING
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Variable optical attenuator
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Patent number 7,522,808
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Issue date Apr 21, 2009
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O-Net Communications (Shenzhen) Limited
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Zeqin Wang
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G02 - OPTICS