About Chen Yongren
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RUICHNL by Chen, Yongren (Track this)
Intl: (009) Electrical and scientific apparatus US: 021; 023; 026; 036; 038 Filing date: 31-Mar-2023 Serial number: 97866532
RUICHNL by Chen Yongren (Track this)
Intl: (009) Electrical and scientific apparatus US: 021; 023; 026; 036; 038 Filing date: 14-Nov-2016 Serial number: 79201019
RAGGIE by Chen Yongren (Track this)
Intl: (009) Electrical and scientific apparatus; (011) Environmental control apparatus US: 021; 023; 026; 036; 038; 013; 021; 023; 031; 034 Filing date: 25-Sep-2015 Serial number: 86768171
RAGGIE by Chen Yongren (Track this)
Intl: (009) Electrical and scientific apparatus; (011) Environmental control apparatus US: 021; 023; 026; 036; 038; 013; 021; 023; 031; 034 Filing date: 20-Dec-2011 Serial number: 79108511