IC 009. US 021 023 026 036 038. G & S: Respiratory equipment, namely, respiratory masks for non-medical purposes for crew and passengers of aeroplanes and helicopters; components and replacement parts for the above installations and equipment; breathing masks and respirators other than for artificial respiration for filtering air; protective face masks not for medical purposes in the nature of breathing masks, smoke hoods, breathing masks with removable visors; quick-donning and pneumatic-harness breathing masks not for medical purposes; oxygen regulators for the aforesaid breathing masks not for medical purposes; storage boxes designed and intended to store breathing masks; breathing apparatus not for medical purposes comprising pressurized gas cylinders for storing air or oxygen; electric liquid oxygen converters and connectors; respiratory and smoke protection equipment, namely, protection masks for civil defense personnel; protective face-shields in the nature of visors for protective helmets; head-up displays, namely, head-mounted video displays

IC 011. US 013 021 023 031 034. G & S: Air filtering installations; emergency oxygen generators, namely, oxygen generator based on thermal decomposition of oxygen rich salts; on-board oxygen generating systems (OBOGS), namely, oxygen concentrators not for medical applications using zeolite granules or oxygen separators using membrane osmosis