Moritz Grossmann receives patent for the BENU Tourbillon minute display This post is also available in: 德语 英语 日语 繁体中文 Files PM_MG_Patent_2874021_E 3.58 MB PM_MG_Patent_2874021_E 348.22 KB Images High Resolution 297.61 KB Low Resolution 428.13 KB High Resolution 276.35 KB Low Resolution 350.05 KB Back