| All Patents in class 315/223 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 390,710 | Oct. 09, 1888 | H.K. Shanck | Gas Engine | gas and gasoline engines |
| 514,168 | Feb. 06, 1894 | N. Tesla | Means for generating electric currents | |
| 568,177 | Sep. 22, 1896 | N. Tesla | Apparatus for producing ozone | |
| 568,180 | Sep. 22, 1896 | N. Tesla | Apparatus for producing electrical currents of high frequency | |
| 588,629 | Aug. 24, 1897 | L. Bly | Igniter for Explosive Engines | ignition systems |
| 609,250 | Aug. 16, 1898 | N. Tesla | Electrical Igniter for Gas-Engines | |
| 881,058 | Mar. 03, 1908 | A.N. Classon | Operating mechanism for magnetos | ignition systems |
