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All Patents in class 318/820
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
  1,002,837Sep. 12, 1911A.M. GrayInduction-motor
  1,256,705Feb. 19, 1918J. LeboviciInduction-motor
1,522,637Jan. 13, 1925J. LeboviciInduction motor
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