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E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
E04G21/12—Mounting of reinforcing inserts; Prestressing
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FR993909D1944-11-081944-11-08Joints pour constructions en maçonnerie, béton et béton armé, avec utilisation de matériaux expansifs
ExpiredFR993909A
(fr)