Muhammad Sohaib, Akram Muneeb - Ul - Qayyum, Muhammad Umair Anwer PR-SOF-1458-DESIGN AND FABRICATION OF A TROLLEY CAPABLE OF LIFTING LOAD ON STAIRS - ISLAMABAD NUST COLLEGE OF EME 2015 Subjects--Topical Terms: DE-MECH-33 Dewey Class. No.: 220 PRO