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E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
E01C7/00—Coherent pavings made in situ
E01C7/02—Coherent pavings made in situ made of road-metal without binders
E01C7/06—Coherent pavings made in situ made of road-metal without binders by melting, burning, or vitrifying road-metal in situ
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FR720469D1931-07-101931-07-10Nouveau procédé de revêtement électrique sur place des routes et nouvelle composition de ce revêtement
ExpiredFR720469A
(fr)