TY  - GEN
ED  - Government of East Bengal
TI  - Rules regulating grant of Patents to govt. Servants engaged in Scientific & technical research. 
PY  - 1932///
KW  - Rules
KW  - regulating
N1  - সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) 


ER  -