00280nam a22000857a 4500 621.46 VAR Durva Kunjan Vartak 5158 Redesigning of Safety Interlocking Mechanism of Mixer Grinder Jars for SUMEET company, promoting user-friendly operations GP 4784 4784 0 0 0 1 REF LIBRARY LIBRARY 2025-12-22 0 621.46 VAR GP130 2025-12-22 2025-12-22 GP