DCQH by DAI,QINGBO (Track this)
Intl: (009) Electrical and scientific apparatus US: 021; 023; 026; 036; 038 Filing date: 18-Jul-2017 Serial number: 87531587
QCQHDU by LI, JIAWEN (Track this)
Intl: (014) Jewelry US: 002; 027; 028; 050 Filing date: 01-Jul-2016 Serial number: 87090585
CQHSP by Changqing Proppant Corporation (Track this)
Intl: (001) Chemicals US: 001; 005; 006; 010; 026; 046 Filing date: 26-Sep-2014 Serial number: 86407794