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Three-stage speed-change mechanism
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Patent number 11,988,269
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Issue date May 21, 2024
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Li-Ho Yao
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Clutch structure
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Patent number 11,614,128
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Issue date Mar 28, 2023
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Li-Ho Yao
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Planetary speed-change mechanism
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Patent number 11,480,233
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Issue date Oct 25, 2022
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Li-Ho Yao
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Structure of speed changer
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Patent number 11,300,183
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Issue date Apr 12, 2022
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Li-Ho Yao
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Electric device for a bicycle
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Patent number 9,634,542
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Issue date Apr 25, 2017
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Li-Ho Yao
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Torque sensor
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Patent number 8,689,642
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Issue date Apr 8, 2014
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Li-Ho Yao
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G01 - MEASURING TESTING
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Straw-loosening-prevention lid
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Patent number 8,646,647
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Issue date Feb 11, 2014
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Li-Ho Yao
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Memory card
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Patent number D611945
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Issue date Mar 16, 2010
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Li-Ho Yao
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D14 - Recording, communication, or information retrieval equipment
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Memory card
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Patent number D530331
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Issue date Oct 17, 2006
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Li-Ho Yao
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D14 - Recording, communication, or information retrieval equipment
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Memory card
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Patent number D525977
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Issue date Aug 1, 2006
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Li-Ho Yao
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D14 - Recording, communication, or information retrieval equipment
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