TY  - BOOK
AU  - Lehnert,Josef
TI  - Introduction to telegraph engineering / 
SN  - 3800911892
PY  - 1977///
CY  - Berlin
PB  - Siemens
KW  - TELEGRAFIA
KW  - SISTEMAS DE COMUNICACION
KW  - TELEPRINTERS
KW  - TELEGRAPH NETWORKS
KW  - TELEGRAPH TRANSMISSION ENGINEERING
KW  - TELEGRAPH MEASURING INSTRUMENTS
ER  -