TECHTONGDA by ZHAO WEI (Track this)
Intl: (007) Machinery US: 013; 019; 021; 023; 024; 031; 034; 035 Filing date: 06-Jun-2016 Serial number: 87062010
TONGDA by ZHENGZHOU DANDIAN TECHNOLOGY SOFTWARE LTD. (Track this)
Intl: (009) Electrical and scientific apparatus; (042) Computer, scientific & legal US: 021; 023; 026; 036; 038; 100; 101 Filing date: 03-Jul-2013 Serial number: 86001714
TONGDA by Beijing Jinyu Tongda Refractory Technologies Ltd. (Track this)
Intl: (019) Nonmetallic building materials US: 001; 012; 033; 050 Filing date: 11-Nov-2008 Serial number: 79066053