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Operator (1874)

New York · leaf 116

An illustration from Operator, 1874, leaf 116
in from three to twelve mouths, according to the Crown tivo., Cloth, with 10 Plates. Price f-->.W. amount of work required"from it, and always gires uniform streugth of current. For OPE\ CI RCUFTS, where all other ffravity batteries are achnowl- A GUIDE ediied fnilnre», the EatfJei* Battery is… … CunitiliiodNo. 1 Soiiiider and Key, willi Battory, Chemleals, Office Wire, siiid an Kveellenl t' New Y'ork. or Practical IUKtrucH"ti In flie .4rt of Telegrapliy. Price of Apparatus compb'le. c;(iod for workintr one mile up- K >s. with Ilouk ,if Ill^truclions, I'.atlcrv, Wire and all uccc Bary…

Telegraph -- Periodicals

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