TY  - GEN
ED  - Government of East Bengal
TI  - Use of Telephone System in Calcutta for Setting up laud speakers in certain ports of Calcutta for the Transmission of A.R.P and Civil Defense Information. 
PY  - 1942///
KW  - Use
KW  - Telephone
N1  - সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) 


ER  -