Technology patent

The date of authorization proclamation：2010.06.09
Description ofIndustrial Designs：products in processing
licence-issuingauthority：Intellectual Property Office

The date of authorization proclamation：2010.06.09
Description ofIndustrial Designs：mahjong machine in bottom bracing (
eight sides)
licence-issuingauthority：Intellectual Property Office

The date of authorization proclamation：2010.06.09
Description ofIndustrial Designs：mahjong machine in bottom bracing (stereoscopic)
licence-issuingauthority：Intellectual Property Office

The date of authorization proclamation：2009.11.04
Utility Models：A general-purpose mahjong machine in tabletop reset lamp
licence-issuingauthority：Intellectual Property Office

The date of authorization proclamation：2009.11.04
Utility Models： A soundproof Techniques in automatic mahjong machine
licence-issuingauthority：Intellectual Property Office