TY  - GEN
AU  -  Idris, Maj Qazi Muhammad (TE-19) 
TI  - Telephone ringer convertor: Maj Qazi Muhammad Idris, Capt Syed Muhammad Kaleem and Capt Ashraf Masood
U1  - 621.382 
PY  - 1987///
CY  - UET, Lahore
PB  - MCS
KW  - UG Projects
KW  - TE-19
ER  -