Ballard, William Cyrus, Jr · New York [etc.] McGraw-Hill company, inc. · leaf 9
ELEMENTS OF RADIO TELEPHONY BY WILLIAM C. BALLARD, Jr., M.E. Assistant Prdpessok of Elbothioal EngineekingCornell University First Edition McGRAW-HILL BOOK COMPANY, Inc. NEW YORK: 370 SEVENTH AVENUE LONDON: 6 cSc 8 BOUVERIE ST., E. C. 4 1922 w coptbight, 1922, by theMcGbaw-Hill Book Company, Inc…
Radio
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