Audels Oil Burner Guide: Installing, Servicing, Repairing (New York: T. Audel and Co., c1947), by Frank Duncan Graham (page images at HathiTrust)
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http://catalog.hathitrust.org/Record/001613625
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Audels Oil Burner Guide: Installing, Servicing, Repairing (New York: T. Audel and Co., c1947), by Frank Duncan Graham (page images at HathiTrust)
New Online Books
http://catalog.hathitrust.org/Record/001613625