U.S. federal trademark · Serial No. 90051094 · Reg. No. 6357782
AIR HANDLING SYSTEMS FOR GENERATING AND MAINTAINING A NEGATIVE PRESSURE ENVIRONMENT; AIR HANDLING SYSTEMS FOR REMOVING AIRBORNE PARTICULATES FROM AN ENCLOSED ENVIRONMENT; DEVICES FOR REMOVING AIRBORNE PARTICULATES FROM AN ENCLOSED ENVIRONMENT, namely, ENVIRONMENTAL ISOLATION CHAMBERS AND AIR FILTERING UNITS; AIR PARTICULATE CONTAINMENT DEVICES, namely, ENVIRONMENTAL ISOLATION CHAMBERS AND AIR FILTERING UNITS; AIR PARTICULATE FILTRATION DEVICES, namely, ENVIRONMENTAL ISOLATION CHAMBERS AND AIR FILTERING UNITS
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