Oulton, Leonard. creator Wilson, Norman J. joint author. text enk London New York Whittaker & Co. 1909 monographic eng

print

4 p. l., 210 p. incl. diagrs. 17 cm. by Leonard Oulton and Norman J. Wilson. With ninety illustrations. Electric testing TK2316 .O8 w 10000077 Washington, D.C. Public Library 781106 20260227112806.0 w 10000077