The application of electricity and magnetism to transmission in the telephone plant /  

 - 112p. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Telephone.<br/>Electrical engineering.<br/>Magnetism.
<br/><br/><label>Dewey Class. No.: </label>621.385  / A512