98/02398 Apparatus for removal of dust from corrosive gas-containing coal gas and manufacture of same : Fukuda, Y. Jpn. Kokai Tokkyo Koho JP 09,313,836 [97,313,836] (Cl. B01D39/20), 9 Dec 1997, Appl. 96/141,638, 4 Jun 1996, 6 pp. (In Japanese)
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