Books by Frank H. Bernhard:
Books in the extended shelves:
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Bernhard, Frank H.: E M F electrical year book; 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. (Electrical Trade Pub. Co., 1921) (page images at HathiTrust)- Bernhard, Frank H.: EMF electrical year book. (Electrical Trade Pub. Co., 1922) (page images at HathiTrust)
Find more by Frank H. Bernhard at your library, or elsewhere.