Accumulators, electric; acoustic couplers; antennas; gas testing instruments; smoke detectors; optical lanterns; speaking tubes; air analysis apparatus; data processing apparatus; respirators, other than for artificial respiration; respiratory masks for non-medical purposes, other than for artificial respiration; safety tarpaulins; life belts

Accumulators, electric; acoustic couplers; antennas; gas testing instruments; smoke detectors; optical lanterns; speaking tubes; air analysis apparatus; data processing apparatus; respirators, other than for artificial respiration; respiratory masks, other than for artificial respiration; safety tarpaulins; life belts