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E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
E04F17/00—Vertical ducts; Channels, e.g. for drainage
E04F17/10—Arrangements in buildings for the disposal of refuse
E04F17/12—Chutes
E04F17/123—Cleaning or disinfecting thereof
E04F17/126—Cleaning or disinfecting thereof with water flushing
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FR706998D1929-12-041930-12-03Perfectionnements apportés aux installations destinées à permettre l'évacuation des ordures ménagères ou semblables
ExpiredFR706998A
(fr)