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Thomas Edison Letter to E.P. Fabbri, Dated Menlo Park, N.J., 5 March 1880
Thomas Alva Edison
出版1880
URLhttp://books.google.com.hk/books?id=0p8ivwEACAAJ&hl=&source=gbs_api
註釋Letter to Mr. Fabbri briefly noting Edison's "new building" and an upcoming test of 640 lightbulbs on one circuit.