| Patents for Michael von Dolivo-Dobrowolsky |
Patents 1 -
14
of 14
      |
| Number | Date | Patentee | Title | Type |
| 422,746 | Mar. 04, 1890 | M. von Dolivo-Dobrowolsky | Electric induction apparatus or transformer | electric distribution systems |
| 427,978 | May 13, 1890 | M. von Dolivo-Dobrowolsky | Alternating-current motor | induction motors |
| 455,683 | Jul. 07, 1891 | M. von Dolivo-Dobrowolsky | Transmission of alternating currents of different phase | electric distribution systems |
| 456,804 | Jul. 28, 1891 | M. von Dolivo-Dobrowolsky | Alternating-current motor | induction motors |
| 469,515 | Feb. 23, 1892 | M. von Dolivo-Dobrowolsky | Electric machine | electric distribution systems |
| CA-38,879 | May 09, 1892 | M. von Dolivo-Dobrowolsky | Electric machine and apparatus for alternating currents of different phases | electric distribution systems |
| CA-39,585 | Jul. 30, 1892 | M. von Dolivo-Dobrowolsky | Electric transformer | electrical devices |
| CA-43,378 | Jun. 26, 1893 | M. von Dolivo-Dobrowolsky | Transmissions of alternating currents of different phases | electric distribution systems |
| 503,038 | Aug. 08, 1893 | M. von Dolivo-Dobrowolsky | Regulation of alternating-current motors | induction motors |
| 540,153 | May 28, 1895 | M. von Dolivo-Dobrowolsky | Apparatus for determining differences between phases of two electric alternating currents | electric meters |
| 549,449 | Nov. 05, 1895 | M. von Dolivo-Dobrowolsky | Apparatus for indicating difference of phase | electrical devices |
| 787,027 | Apr. 11, 1905 | M. von Dolivo-Dobrowolsky | Monophase and polyphase alternating-current machine | induction motors |
| 1,060,894 | May 06, 1913 | M. von Dolivo-Dobrowolsky | Dynamometer-wattmeter | electrical measuring apparatus |
| 1,227,400 | May 22, 1917 | M. von Dolivo-Dobrowolsky | Electric motor | synchronous motors |
