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Patent applications and USPTO patent grants for Yu; Donggui.The latest application filed is for "gravity-adaptive card separation mechanism and card distribution device with the mechanism".
Patent | Date |
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Gravity-adaptive card separation mechanism and card distribution device with the mechanism Grant 9,519,845 - Liu , et al. December 13, 2 | 2016-12-13 |
Gravity-adaptive Card Separation Mechanism And Card Distribution Device With The Mechanism App 20160092756 - Liu; Junhua ;   et al. | 2016-03-31 |
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