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Sighting system
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Patent number 11,530,900
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Issue date Dec 20, 2022
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Sintai Optical (Shenzhen) Co., Ltd.
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Hung-Chi Chou
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G02 - OPTICS
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Sight
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Patent number 10,495,415
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Issue date Dec 3, 2019
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Sintai Optical (Shenzhen) Co., Ltd.
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Hung-Chi Chou
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F41 - WEAPONS
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Bi-reticle sight
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Patent number 10,132,594
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Issue date Nov 20, 2018
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Sintai Optical (Shenzhen) Co., Ltd.
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Hung-Chi Chou
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F41 - WEAPONS
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Adjustable pillow device
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Patent number 7,856,687
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Issue date Dec 28, 2010
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Hung-Chien Chou
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...