TY  - BOOK
AU  - Trautmann,Kurt
AU  - Brinkmann,K.H.
TI  - Design of automatic telephone exchanges
U1  - 621.3877 
PY  - 1967///
CY  - Berlin
PB  - Siemens Aktienesellschaft
KW  - Telephone, Automatic
KW  - Telephone switching systems, electronic
KW  - Telephone systems
KW  - Telephone relays
KW  - Telephone, Dial
N1  - Includes index; Library has vol. 1&2; Vol. 1, Circuit units and functions, 1967-v. 2, Principles
ER  -