Transmission of telegrams :  hearings [on] H. 3010 [to fix requirements governing receipt transmission, delivery, and preservation of messages of interstate telegraph and telephone companies], May 24, 1912. 

 - [Washington, D.C.],  1912. 
 - 162 p. 
<br/><br/> Interstate and Foreign Commerce Committee.  CRDP Program Historic Shelflist record. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cipher and telegraph codes.
<br/><br/><label>Gov. Doc. Class. No.: </label>Y 4.IN 8/4:T 23/3