FR400359A - Dispositif pour la prévention des dommages, particulièrement des explosions et empoisonnements causés par l'échappement de gaz
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Dispositif pour la prévention des dommages, particulièrement des explosions et empoisonnements causés par l'échappement de gaz
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G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
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FR400359D1908-03-051909-03-04Dispositif pour la prévention des dommages, particulièrement des explosions et empoisonnements causés par l'échappement de gaz
ExpiredFR400359A
(fr)
Dispositif pour empecher les explosions et empoisonnements par le gaz de meme que les fuites de gaz des conduites dans les appartements ou endroits fermés, ainsi que l'accumulation des gaz dangereux dans les mines et autres endroits analogues