Telegraphic connections
Subtitle: embracing recent methods in quadruplex telegraphy.
By: By Charles Thom and Willis H. Jones.
Contributors: Jones, Willis H., joint author.
Publisher: D. Van Nostrand company
Published: 1892
Place of publication: New York
Language: eng
Number of pages: 59
Subjects: Telegraph -- Handbooks, manuals, etc.; Telegraph -- Quadruplex system.
Genres: Handbooks, manuals, etc.