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Miscellaneous U.S. elevator patents (1880)

leaf 505

An illustration from Miscellaneous U.S. elevator patents, 1880, leaf 505
3 Sheets— Sheet 3. (No Model.) F. J. RUSSELL. CONTROLLING DEVICE FOR ELECTRIC MOTORS. No. 595,344. Patented Dec. 14, 1897. Figrt … WITNESSES ff/f?S&<,£^ -£_ att/rney THE NORRIS PETERS CO., WASHINGTON, D- C.

Elevators

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