General instructions for regulating the grant of Permission for the taking out of Patents by govt. servants whose duties involve the carrying out of Scientific research. File No. P.H.2R-91/34 - 1934 - 4 p; H-35 cm; W-22 cm সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) Subjects--Topical Terms: General instructions