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A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
A62B31/00—Containers or portable cabins for affording breathing protection with devices for reconditioning the breathing air or for ventilating, in particular those that are suitable for invalids or small children
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FR48163D1937-02-161937-02-16Dispositif protecteur contre les gaz
ExpiredFR48163E
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