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ANCIENS E CAUVI Ets
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Publication of FR850549ApublicationCriticalpatent/FR850549A/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
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FR850549D1938-08-261938-08-26Appareil filtrant de protection contre les gaz
ExpiredFR850549A
(fr)