TY  - GEN
ED  - Government of Bengal,
TI  - Grant of permission for taking out patents by Govt. Servants engaged in technical research. 
PY  - 1933///
KW  - Grant of permission
N1  - সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) 


ER  -