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ANCIENS E CAUVI Ets
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ANCIENS E CAUVI Ets
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Publication of FR841855ApublicationCriticalpatent/FR841855A/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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FR841855D1938-01-311938-01-31Masque de protection contre les gaz
ExpiredFR841855A
(fr)