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EMF Electrical Year Book, Volume 1 1921

EMF Electrical Year Book, Volume 1 1921 · "An encyclopedia of current information about each branch of the electrical industry with a dictionary of electrical terms and a classified directory of electrical and related products and their manufacturers in the United States and Canada." · Edited by Frank H. Bernhard · Description based on: 1st (1922 ed.); title from title page · Latest issue consulted: 3rd, 1924 ed

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