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Radio, miracle of the 20th century ... a story of human achievement that stands unrivalled in the history of humanity, together with a colorful portrayal, giving a broad, general view of the whole subject of wireless telegraph and telephone and its marvelous development (1922)

Drinker, Frederick E. [from old catalog], Lewis, James G., [from old catalog] joint author · [Philadelphia, Printed by National publishing co.] · leaf 71

An illustration from Radio, miracle of the 20th century ... a story of human achievement that stands unrivalled in the history of humanity, together with a colorful portrayal, giving a broad, general view of the whole subject of wireless telegraph and telephone and its marvelous development, 1922, leaf 71
XL H J 5o%o HP <tj ft O o 5< o H <DO cP bc.S- u c ^3-m O (H o B- beo to l| ni … Copyright, Underwood & Underwood, N. T. USING RADIO TO DIRECT MILITARY MOVEMENTSOrders are given in the office of the Lane Technical High School ofChicago and conducted through a receiving set to the field and there relayedto the officer of the field through means of a megaphone.

Radio

Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.

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