发明授权
EP0311329B1 Liquid crystal compositions comprising optically active 1-[2-halogen-substituted-phenyl]-ethanols and derivatives thereof 失效
含有光学活性的1- [2-卤素取代的 - 苯基]液晶混合物-äthanole及其衍生物。

Liquid crystal compositions comprising optically active 1-[2-halogen-substituted-phenyl]-ethanols and derivatives thereof
信息查询
0/0