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Pirelli and C SpA
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Pirelli SpA
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Publication of FR746244ApublicationCriticalpatent/FR746244A/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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FR746244D1931-12-011932-11-23Perfectionnement à la fabrication des masques anti-gaz entièrement en caoutchouc
ExpiredFR746244A
(fr)