78299763
Sep 12, 2003
RESPIRATORS OTHER THAN FOR ARTIFICIAL RESPIRATION; BREATHING APPARATUS; NAMELY, COMPRESSED OXYGEN AND AIR CARTRIDGES SOLD AS A UNIT WITH STORAGE PACKS FOR THE COMPRESSED OXYGEN AND AIR CARTRIDGES; RESPIRATORY MASK FILTERS; PRESSURE GAUGES; FLOW SWITCHES; ELECTRIC OR ELECTRONIC SENSORS FOR AIR QUALITY
Electrical and Scientific Apparatus