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Tamper indicating padlock
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Patent number 8,621,899
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Issue date Jan 7, 2014
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Sinox Company Ltd.
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Yung-Li Kuo
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Tamper indicating padlock
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Patent number 8,353,184
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Issue date Jan 15, 2013
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Sinox Company Ltd.
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Renny T. Ling
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Padlock with a status indicator
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Patent number 7,216,517
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Issue date May 15, 2007
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Sinox Co., Ltd.
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Renny Tse-Haw Ling
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Tool device
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Patent number 7,051,440
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Issue date May 30, 2006
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Sinox Co., Ltd.
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Christian Bremicker
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Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC