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Patents of 1887

In 1887,at the United States Patent Office,Tesla filed patents related toa complete system of generatorsand transformers of electric power. The industrialist George Westinghousepresented these patentsas commercial devicesand a system of polyphase currents, which Tesla demonstratedat the Chicago Expositionin 1893.

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Light from Nature’s Process

Energy Without Wires

We will obtain light directlyfrom the most economical processthat exists in nature. Look —lightning carries energywithout wires,air is the best conductor. Nothing is more fascinatingto study than nature itself. To understand that great mechanism,to discover the forces that work within itand the laws that govern it, is the most exalted taskof humankind. The most exalted

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