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B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
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FR871154D1940-12-041940-12-04Préfiltre anti-hygrométrique pour le gaz de gazogène servant à l'alimentation des moteurs à explosion
ExpiredFR871154A
(fr)