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Hutchinson SA
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Hutchinson SA
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Publication of FR564591ApublicationCriticalpatent/FR564591A/fr
A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
A62B18/02—Masks
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FR564591D1922-07-181922-07-18Masque protecteur contre les gaz asphyxiants
ExpiredFR564591A
(fr)