SYSTEM TO ESCAPE FROM A BUILDING IN AN EMERGENCY BY COLLAPSIBLE STAIRCASE

Inventors

SURYA NARAYAN PANDA, SANJEEV VERMA, ASHUTOSH PANDA, VINOD KUMAR, VINAY KUMAR GUPTA, MANSI, SUDARSON JENA

Patent File Number - 202211060998        Patent File Date - 26/10/2022