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All Patents in class 336/83
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
375,614Dec. 27, 1887R. EickemeyerSparker-coil for gas-lighting
422,746Mar. 04, 1890M. von Dolivo-DobrowolskyElectric induction apparatus or transformerelectric distribution systems
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