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"LYU YONGFENG"
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"LYU YONGFENG"
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Comfortable human engineering chair
by
LYU YONGFENG
Year of Publication
25.07.2023
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Ergonomic seat comfort detection device
by
LYU YONGFENG
Year of Publication
25.07.2023
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Butterfly-shaped supporting seat
by
LYU YONGFENG
Year of Publication
03.03.2023
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E-sports chair with externally-hung waist rest
by
LYU YONGFENG
Year of Publication
03.03.2023
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Office chair capable of reducing pressure on seat edge
by
LYU YONGFENG
Year of Publication
03.03.2023
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Dynamic ergonomic seat
by
LYU YONGFENG
Year of Publication
03.03.2023
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Novel indoor aluminum alloy door
by
LYU YONGFENG
Year of Publication
07.06.2022
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Adjustable comfortable office chair
by
LYU YONGFENG
Year of Publication
13.05.2022
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9
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Direct-driven numerical control pattern sewing machine
by
LYU YONGFENG
Year of Publication
28.01.2022
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Numerical control plate bending press
by
LYU YONGFENG
Year of Publication
28.01.2022
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Aluminum alloy sliding window with sealing mechanism
by
LYU YONGFENG
Year of Publication
21.12.2021
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12
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Fuzz button interboard radio frequency connector
by
LYU YONGFENG
Year of Publication
24.02.2016
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13
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Hair button inter -plate electric connector
by
LYU YONGFENG
Year of Publication
02.12.2015
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Fuzz button inter-board electric connector
by
LYU YONGFENG
Year of Publication
28.10.2015
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Fuzzy button
by
LYU YONGFENG
Year of Publication
30.09.2015
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Hand disinfection sprayer
by
LIU YUNYING
,
LYU YONGFENG
Year of Publication
07.11.2023
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Circulating machine for indoor disinfection
by
LIU YUNYING
,
LYU YONGFENG
Year of Publication
07.11.2023
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Intertwined-wire insertion pin
by
LYU YONGFENG
Year of Publication
22.07.2015
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Handheld disinfection spraying pot
by
LIU YUNYING
,
LYU YONGFENG
Year of Publication
26.09.2023
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Large current ribbon spring jack
by
LYU YONGFENG
Year of Publication
03.06.2015
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