Lodygin family.
Engineer, chemist, and inventor who was born in Russia and emigrated to the United States after marrying an American. The Soviets consider him the inventor of the first practicable incandescent light bulb (ca. 1872).
From the description of Lodygin Family Papers, ca. 1792-1950. (Columbia University In the City of New York). WorldCat record id: 320408835
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