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| All Patents in class 314/12 | |||||
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| Number | Date | Patentee | Title | Type | |
| 334,023 | Jan. 12, 1886 | J.A. Jenney | Arc-lamp regulator | electric arc lamps | |
| 335,787 | Feb. 09, 1886 | N. Tesla | Electric-Arc Lamp | electric arc lamps | |