79187308
Jan 20, 2016
Apr 18, 2017
thermally activated glass vials and bursting vessels for sprinklers, smoke or fire dampers, and for safety valves and for safety valves used in gas-operated and hydrogen-operated vehicles; thermal extinguishing elements for sprinklers, smoke or fire dampers, and for safety valves and for safety valves used in gas-operated and hydrogen-operated vehicles
Electrical and Scientific Apparatus