FR891557A - Dispositif donnant le signal de retraite pour appareils de protection contre les gazà oxygène ou appareils respiratoires à air comprimé
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Dispositif donnant le signal de retraite pour appareils de protection contre les gazà oxygène ou appareils respiratoires à air comprimé
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A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
A62B9/00—Component parts for respiratory or breathing apparatus
A62B9/006—Indicators or warning devices, e.g. of low pressure, contamination
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FR891557D1941-01-081943-02-26Dispositif donnant le signal de retraite pour appareils de protection contre les gazà oxygène ou appareils respiratoires à air comprimé
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