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E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
E01C5/00—Pavings made of prefabricated single units
E01C5/16—Pavings made of prefabricated single units made of metallic units
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FR407471D1909-09-301909-09-30Revetements et pavages de routes pour réduire ou empecher les incommodités produites par la poussière
ExpiredFR407471A
(fr)