1.智能板書互動儀與搪瓷投影黑板一體化裝置發明專利證書。專利號:ZL 2011 1 0144259.X
2.智能板書互動儀與搪瓷投影黑板一體化裝置專利證書。專利號:ZL 2011 2 0179887.7
3.搪瓷投影黑板專利證書。專利號:ZL 2011 2 0152126.2
1.智能板書互動儀與搪瓷投影黑板一體化裝置發明專利證書。專利號:ZL 2011 1 0144259.X
2.智能板書互動儀與搪瓷投影黑板一體化裝置專利證書。專利號:ZL 2011 2 0179887.7
3.搪瓷投影黑板專利證書。專利號:ZL 2011 2 0152126.2