71503531
Jun 8, 1946
Aug 16, 1949
FIRE EXTINGUISHING EQUIPMENT-NAMELY, SPRAY HEADS AND PROTECTIVE BLOW-OFF COVERS THEREFOR FOR FIXED FIRE EXTINGUISHING INSTALLATIONS AND SPRAY HEADS, NOZZLES, AND APPLICATORS, THE LATTER CONSISTING OF A BENT PIPE WITH NOZZLE, WITH OR WITHOUT SHUT-OFF, FOR PORTABLE FIRE EXTINGUISHING EQUIPMENT
Yarns and Threads