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Edison General Electric Company
Realignments of Purposes and Personnel
Batchelor and the Edison Ore Concentrating Works
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Alexander Graham Bell associates Batch Batchelor diary Batchelor recorded Batchelor wrote Bell Bell's Bergmann Charles Batchelor cylinder demonstration diaphragm dynamos Edison and Batchelor Edison Electric Light Edison General Electric Edison Laboratory Edison Lamp Edison lighting Edison Machine Edison manufacturing Edison National Historic Edison Phonograph Edison system Electric Company Electric Light Company electric pen elor engineer etheric force Europe exhibit experiments factory filament France Gilliland graph Graphophone groove Henry Villard human voice incandescent lamp installation Insull interest invention iron J. P. Morgan Jehl Jersey John Kruesi Johnson Josephson laboratory notebooks later Leon letter lighting system magnet Manufacturing Company Menlo Park mills Newark October Ogden operation organized paper Paris partners Patent Application percent phono plant problem produced received reproduced result Samuel Insull sapphire Schenectady stylus success T. A. Edison talking doll Tate telegraph telephone tests transmitter trip trolley West Orange Western Union wire York