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| Patents for Holtzer-Cabot Electric Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 618,578 | Jan. 31, 1899 | E.C. Newcomb | Alternating current motor | |
 | 618,579 | Jan. 31, 1899 | E.C. Newcomb | Commutator short-circuiter | |
 | 745,772 | Dec. 01, 1903 | D.M. Bliss | Induction-motor | |
 | 860,116 | Jul. 16, 1907 | H.A. Balcome | Motor-clutch | |
 | 860,124 | Jul. 16, 1907 | D.M. Bliss | Switch | |
 | 860,132 | Jul. 16, 1907 | H.J. Heeney | Signal-drop | |
 | 1,108,087 | Aug. 18, 1914 | E.M. Tornmin | Automobile generator for operating headlights | |