<div class="description">
<dl><dd>The first edition was prepared by the Bureau of Standards under the direction of the Training Section of the Office of the Chief Signal Officer of the Army. The work of revision and the preparation of a considerable part of the new material has been done by Mr. R.S. Ould. cf. p. 7</dd>
<dd>"War Department. Document no. 1069. Office of the Adjutant General."</dd>
<dd>"Radio publications": p. 568-577</dd></dl><br>Subjects: Telegraph, Wireless; Radio</div>
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<dl><dd>United States. National Bureau of Standards</dd>
<dd>Ould, Richard Sheldon, 1889-</dd>
<dd>United States. Army. Signal Corps</dd></dl></div>
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