How to become a wireless operator;

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Bibliographic Details
Author / Creator:Hayward, Charles B. (Charles Brian), 1876-
Imprint:Chicago, American technical society, 1918.
Description:4 p. ., 298, 14 p. illus., diagrs. 21 cm.
Language:English
Subject:
Format: Print Book
URL for this record:http://pi.lib.uchicago.edu/1001/cat/bib/2241459
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Notes:committed to retain 20170930 20421213 HathiTrust