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Chronograph
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Electrical Power Supply
ELECTRICAL POWER SUPPLY. Prototype electrical torches in St. Petersburg were lit in 1873 on Odesskaya Street. Twelve electrical torches designed by P.N. Yablochkov were installed in 1879 for the lighting of Liteiny Bridge
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Street Lighting (in the city)
STREET LIGHTING. In 1718 Tsar Peter the Great issued a decree on "lighting St. Petersburg city streets". In 1720 the first oil lanterns were installed on the streets (architect J.B. Le Blond); they were lighted from August through April
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