[var.media_title;onformat=retitle]
U.S.patent416,194-ElectricMotor-1889December3-DrawingsincludethemotorseeninmanyofTesla'sphotos;Classicalternatingcurrentelectro ...American·Patents#1–#50·Patents#51–#100·Othercountries,US7923144B2isthemostpopularpatentintheTeslaportfolio.Ithasrec...。參考影片的文章的如下: