Telegraphic connections : embracing recent methods in quadruplex telegraphy /

Bibliographic Details
Main Author:	Thom, Charles
Other Authors:	Jones, Willis H.
Format:	Book
Language:	English
Published:	New York : D. Van Nostrand company, 1892.
Subjects:	Telegraph > Handbooks, manuals, etc. Telegraph > Quadreplex system.

Description
Physical Description:	59p. ; 16 x 24 cm.